Philip Graham Wynn
Philip Graham Wynn holds 12 current roles and has 17 previous roles across 29 organisations.
Current roles
12
at 10 organisations
Previous roles
17
ended appointments
Organisations
29
10 now, 19 in the past
People served alongside
316
on the same boards
On boards since
2017
9 years in governance
Longest current role
9 yrs
at Linking Environment and Farming
Charity roles
3
now, plus none in the past
Company roles
7
now, plus 19 in the past
Overview
Philip's network
316 people29 organisationsExplore in 3DiThe red node is Philip. The map draws current roles and the people on those boards. Previous organisations, including dissolved ones, are added as dashed links when Former organisations is on; the figures above also count previous roles.Hover a node to focus its connections; click one to open it.People Philip has served alongside
316 peopleiBased on overlapping official board records, including company secretaries. Calculated from official records It does not mean they know each other. Only formal co-service is listed: people are never joined on a matching name alone.Linking Environment and Farming 28 people · 2017-present
- Tc Kent LimitedServing together now · since 2026
- Ian Robert MaceServing together now · since 2026
- Anna Maria DugdaleServing together now · since 2024
- Christopher Jake FreestoneServing together now · since 2024
- Dr John Hereward WakeServing together now · since 2024
- John Matthew RennerServing together now · since 2024
- Caroline Mary MasonServing together now · since 2023
- Professor Richmal Jane RicksonServing together now · since 2020
- Michael Frank YoungServing together now · since 2019
- Mr Thomas Michael Curtis GreenServing together now · since 2018
- James Frank JohnsonServed together 2017-2026
- Cedric William PorterServed together 2017-2025
Roles
Roles
29 roles across 29 organisations (12 current, 17 previous)Current roles (12)iTaken from official records: Companies House, Charity Commission. Each row shows the appointment and, where it has ended, the end date as filed.
- Current
- Current
- Current
- National Institute of Agricultural Botany TrustTrustee · 2024-presentappointed 2024-01-09 · Charity 1144528Current
- National Institute of Agricultural Botany TrustDirector · 2024-presentappointed 2024-01-09 · Company 07823588Current
- Current
- Current
- Current
- Current
- Current
- Current
- Wynn Business Partnerships LimitedCompany secretary · 2006-presentappointed 2006-09-19 · Company 05772589Current
Previous roles (17)iCharity trustee roles come from the current Charity Commission register, which lists serving trustees only. Company roles, current and past, come from Companies House.
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
- Previous
Network
Philip's network
iThe red node is Philip. Pale nodes are charities, grey nodes are companies, and darker grey nodes are the people who sit on them. Dashed links are historical or inferred. Dashed blue-grey links are company secretaries. Click any node to explore.People Philip has served alongside
316 people across 29 organisationsiBased on overlapping official board records, including company secretaries. Calculated from official records It does not mean they know each other. Only formal co-service is listed: people are never joined on a matching name alone.Linking Environment and Farming 28 people · 2017-present
- Tc Kent LimitedServing together now · since 2026
- Ian Robert MaceServing together now · since 2026
- Anna Maria DugdaleServing together now · since 2024
- Christopher Jake FreestoneServing together now · since 2024
- Dr John Hereward WakeServing together now · since 2024
- John Matthew RennerServing together now · since 2024
- Caroline Mary MasonServing together now · since 2023
- Professor Richmal Jane RicksonServing together now · since 2020
- Michael Frank YoungServing together now · since 2019
- Mr Thomas Michael Curtis GreenServing together now · since 2018
- James Frank JohnsonServed together 2017-2026
- Cedric William PorterServed together 2017-2025
- Ana Luz Romero SalcedoServed together 2022-2024
- Emma Kathryn PennyServed together 2020-2024
- Ian Andrew AshbridgeServed together 2017-2024
- Sara Caroline EppelServed together 2017-2024
- Angus James DavisonServed together 2018-2024
- Ian William PigottServed together 2017-2023
- Keith Richard NormanServed together 2019-2022
- Edmund Philip Geoffrey HuxtableServed together 2017-2020
- Richard Thomas WhitlockServed together 2017-2019
- Kathryn Mary Winrow2017-2019
- Andrew Stanley BurgessServed together 2017-2018
- Professor Chris David CollinsServed together 2017-2018
- Rt Hon John Michael JackServed together in 2017
- Stephen Charles Rudston FellServed together in 2017
- Nigel Ian GarbuttServed together in 2017
- Richard QuinnServed together in 2017
Dyson Farming Limited 12 people · 2016-present
- Sheener OoiServing together now · since 2025
- Martin William BowenServing together now · since 2025
- Daniel James CrossServing together now · since 2022
- Edward David FursdonServing together now · since 2016
- Nicholas Hugh WorboysServed together 2016-2026
- Susan Maria O'NeillServed together 2020-2025
- Sir James Jeffrey Corfield BucknallServed together 2016-2025
- Richard John WilliamsonServed together 2016-2021
- Ben WisemanServed together 2018-2020
- Caroline Jane TuckerServed together 2017-2019
- Sir James DysonServed together 2016-2019
- Martyn Douglas SmithServed together in 2017
Humber Grain Services Limited (dissolved 2012) 11 people · 2009-present
- Andrew Charles JacksonServing together now · since 2009
- Edward Peel MossopServing together now · since 2009
- Paul David Feild StrawsonServing together now · since 2009
- Paul Frank ArdenServing together now · since 2009
- Struan Thomas Caudwell AbbottServing together now · since 2009
- Julian HargreavesServed together 2009-2010
- Hugh Charles Drake2009 dates incomplete
- David Joseph Dalby2008-2009 dates incomplete
- Michael Adrian William Johnson2006-2009 dates incomplete
- Alan Edward Searby1997-2009 dates incomplete
- Michael Field Strawson1994-2009 dates incomplete
Fold Hill Foods Limited 7 people · 2020-present
- William James GrantServing together now · since 2023
- Benjamin Thomas MankertzServing together now · since 2023
- Neil Philip SandersonServing together now · since 2023
- James Edward GrantServed together 2020-2023
- William Edward Grant2013-2020 dates incomplete
- William Trevor Price2000-2020 dates incomplete
- Andrew John GrantDates incomplete
National Institute of Agricultural Botany Trust 7 people · 2024-present
- Mark SpragginsServing together now · since 2024
- James Eric Godfrey OBEServing together now · since 2024
- John Robert LathamServing together now · since 2024
- Richard Auld MacdonaldServing together now · since 2024
- John Andrew ElliotServed together 2024-2026
- Dr Charles William LookerServed together in 2024
- Dr Juno McKeeServed together in 2024
Saracens Securities Limited 5 people · 2025-present
- Sarah Joanna GascoineServing together now · since 2025
- Emma Sophie SaywellServing together now · since 2025
- Reginald Brian Bunnett Warwick1993-2025 dates incomplete
- Douglas Walter Henry Timothy Gascoine1993-2025 dates incomplete
- Robert George BeckettDates incomplete
Brambles Pet and Wildlife Limited 4 people · 2025-present
- Andrew John GrantServing together now · since 2025
- Benjamin Thomas MankertzServing together now · since 2025
- Neil Philip SandersonServing together now · since 2025
- William James GrantServing together now · since 2025
Strawson Group Limited 4 people · 2024-present
- Annabel Jane StrawsonServing together now · since 2024
- Harry Charles StrawsonServing together now · since 2024
- Jane Eccles StrawsonServing together now · since 2024
- Robert Mark StrawsonServing together now · since 2024
Robert Purvis Consulting Limited 3 people · 2021-present
- Russell William WalkerServing together now · since 2021
- Robert George PurvisServed together 2021-2024
- David John ThorpServed together 2021-2023
- David John ThorpServed together 2021-2023
Wynn Business Partnerships Limited 1 person · 2006-present
- Elizabeth Ann WynnServing together now · since 2006
National Institute of Agricultural Botany Trust 3 people · 2024-present
- James Eric Godfrey OBEServing together now · since 2024
- John Robert LathamServing together now · since 2024
- Richard Auld MacdonaldServing together now · since 2024
The Henry Plumb Foundation 9 people · 2018-present
- Adam QuinneyServing together now · since 2018
- Catherine Emma BaxterServing together now · since 2018
- Charles AntrobusServing together now · since 2018
- Heather Margaret WildmanServing together now · since 2018
- James Arthur Dillon SpeersServing together now · since 2018
- John Thorley OBEServing together now · since 2018
- Miss Rosie CarneServing together now · since 2018
- Richard Henry Ronald Benyon LordServing together now · since 2018
- Timothy James RussServing together now · since 2018
Linking Environment and Farming 9 people · 2017-present
- Anna Maria DugdaleServing together now · since 2017
- Caroline Mary MasonServing together now · since 2017
- Christopher Jake FreestoneServing together now · since 2017
- Dr John Hereward WakeServing together now · since 2017
- Ian Robert MaceServing together now · since 2017
- John Matthew RennerServing together now · since 2017
- Michael Frank YoungServing together now · since 2017
- Mr Thomas Michael Curtis GreenServing together now · since 2017
- Professor Richmal Jane RicksonServing together now · since 2017
The Robert Purvis Argi-Tech Business Limited (dissolved 2025) 2 people · 2022-2025
- Timothy Hugh Breitmeyer MajorServed together 2022-2025
- Robert George PurvisServed together 2022-2025
Humber Grain Limited 7 people · 2011-2024
- Benjamin HargreavesServed together 2023-2024
- Hannah Elizabeth HaighServed together 2017-2024
- Andrew Charles JacksonServed together 2011-2024
- Edward Peel MossopServed together 2011-2024
- Paul David Feild StrawsonServed together 2011-2024
- Paul Frank ArdenServed together 2011-2024
- Struan Thomas Caudwell AbbottServed together 2011-2024
Dean Farming Limited 4 people · 1993-2023
- Alastair James PriestleyServed together 2019-2023
- Andrew WraithServed together 2019-2023
- James Fitzroy DeanServed together 2019-2023
- Christopher James NevileServed together 1993-2023
Innovations for Farming Limited (dissolved 2022) 5 people · 2021
- Timothy Hugh Breitmeyer MajorServed together in 2021
- Gregory Stephen SmithServed together in 2021
- Allan Malcolm StevensonServed together in 2021
- Robert George PurvisServed together in 2021
- David John ThorpServed together in 2021
Robert Purvis Initiatives Ltd (dissolved 2021) 3 people · 2021
- Robert George PurvisServed together in 2021
- David John ThorpServed together in 2021
- Nigel ParkerServed together in 2021
Beeswax Farming Limited (dissolved 2017) 6 people · 2014-2016
- Richard John WilliamsonServed together 2014-2016
- Sir James Jeffrey Corfield BucknallServed together 2014-2016
- Nicholas Hugh Worboys Mr.Served together 2014-2016
- Sir James DysonServed together 2014-2016
- Edward David FursdonServed together 2014-2016
- Martyn Douglas SmithServed together 2014-2016
Farmers Fletchers Hall Limited (dissolved 2021) 22 people · 2014-2016
- Jeremy Paul Godsmark FinnisServed together in 2016
- Rosemary Susan Nattali CarneServed together in 2016
- Richard George Castelfranc CheveleyServed together in 2016
- Peter David GreigServed together 2015-2016
- Mary Anne CourtneyServed together 2015-2016
- William Andrew Lindsay GemmillServed together 2015-2016
- Andrew George Folland DykeServed together 2014-2016
- Julian Anthony SayersServed together 2014-2016
- Peter Ralph FaulknerServed together 2014-2016
- Jeremy Richard GarnettServed together 2014-2015
- Richard David CooksleyServed together 2014-2015
- Stephen Neil SkinnerServed together 2014-2015
- Paul Malcolm KnightServed together 2014-2015
- Anthony Mervyn Poulter CaptainServed together 2014-2015
- Adrian Jeremy Scott KnightServed together 2014-2015
- Sir David Hugh WoottonServed together 2014-2015
- John Hampden HobartDates incomplete
- Andrew Charles StreeterDates incomplete
- Simon Fred Boyton TaylorDates incomplete
- Adrian John TrittonDates incomplete
- Harold Leon WatermanDates incomplete
- Peter Leslie WhitingDates incomplete
The Green PEA Company Limited 11 people · 2008-2015
- Geoffrey Byron CalderServed together 2014-2015
- Frank William BradleyServed together 2013-2015
- Richard Martin RobinsonServed together 2013-2015
- Peter John CaleyServed together 2012-2015
- Charles Andrew WraithServed together 2009-2015
- Martin Paul RiggallServed together 2008-2015
- Paul Wallace HaywardServed together 2008-2015
- Nicholas John BakerServed together 2008-2014
- Julian HargreavesServed together 2008-2013
- William Guy NettletonServed together 2008-2012
- David Lloyd MartinsonServed together 2008-2009
Green PEA Processing Limited 10 people · 2010-2015
- Geoffrey Byron CalderServed together 2014-2015
- Frank William BradleyServed together 2014-2015
- Richard Martin RobinsonServed together 2013-2015
- Peter John CaleyServed together 2012-2015
- Charles Andrew WraithServed together 2010-2015
- Martin Paul RiggallServed together 2010-2015
- Paul Wallace HaywardServed together 2010-2015
- Nicholas John BakerServed together 2010-2014
- Julian HargreavesServed together 2010-2013
- William Guy NettletonServed together 2010-2012
Lincolnshire Rural Support Network 8 people · 2010-2012
- Harriet Ruth ButtServed together 2010-2012
- James Eric Godfrey OBEServed together 2010-2012
- Meryl Suzanne WardServed together 2010-2012
- Michael Anthony MolyneuxServed together 2010-2012
- Rev Alan John RobsonServed together 2010-2012
- Reverend David John CreaseyServed together 2010-2012
- William Stuart HemingtonServed together 2010-2012
- Sarah Jayne PoucherServed together in 2010
The Oxford Farming Conference 29 people · 2005-2008
- Campbell Wilson TweedServed together 2007-2008
- Heather Lydia PeckServed together 2007-2008
- John Richard Stanton WardServed together 2007-2008
- Vincent Richard Hedley LewisServed together 2007-2008
- Bruce RossServed together 2006-2008
- Sion RobertsServed together 2006-2008
- Teresa Marie WickhamServed together 2006-2008
- Colin Martin RaynerServed together 2005-2008
- Julian Anthony SayersServed together 2005-2008
- Murray Sidney Kent1995-2008 dates incomplete
- William John Henderson1995-2008 dates incomplete
- Peter Campbell Bennett1995-2008 dates incomplete
- George Andrew Macpherson1994-2008 dates incomplete
- Donald James Renwick Macrae1994-2008 dates incomplete
- Graham Southwell1994-2008 dates incomplete
- Timothy James Heywood1994-2008 dates incomplete
- Elizabeth Anne Browning1993-2008 dates incomplete
- Thomas Arthur Copas1993-2008 dates incomplete
- Ann Purcell Mayall1993-2008 dates incomplete
- Maitland Mackie1993-2008 dates incomplete
- Malcolm Florey1993-2008 dates incomplete
- John Nicholas PageServed together 2005-2007
- Deborah Kathleen BeatonServed together 2005-2007
- Mark Patrick TinsleyServed together 2005-2007
- Radburne Telfer ThomasServed together 2005-2007
- Christopher Anthony MonkServed together 2005-2006
- James McLeanServed together 2005-2006
- Rosemary Susan Nattali CarneServed together 2005-2006
- Martin WilkinsonServed together in 2005
Aubourn Limited (dissolved 2012) 20 people · until 2006
- Christine Lynn CoxDates incomplete
- Danny O'DonnellDates incomplete
- Andrew TuckerDates incomplete
- Tina Lynne CutlerDates incomplete
- Michaela Frances EastDates incomplete
- Christina Elspeth HildreyDates incomplete
- Clare Jacqueline LathamDates incomplete
- Ruth Tessa Michelson-CarrDates incomplete
- Hugh Simon NevileDates incomplete
- Peter Campbell BennettDates incomplete
- Hugh Murray Charles CoghillDates incomplete
- Allan CollinsDates incomplete
- Stephen HollisDates incomplete
- Kenneth Scott JonesDates incomplete
- Sir Charles David NaishDates incomplete
- Christopher James NevileDates incomplete
- Sir Henry Nicholas NevilleDates incomplete
- Geoffrey Neil Van CutsemDates incomplete
- Hans Anthon VestbirkDates incomplete
- Dennis Tansley WestonDates incomplete
Lincolnshire Agricultural Society 112 people · 2000-2005
- Ian Harrup Walter2000-2019 dates incomplete
- Charles Richard Sinclair Hood2000-2011 dates incomplete
- Christopher Edward Newsum Howard2000-2011 dates incomplete
- William Gordon Henson2000-2008 dates incomplete
- Christopher Michael GodsonServed together 2004-2005
- Francis John Fane Marmion DymokeServed together 2004-2005
- John Charles RobinsonServed together 2004-2005
- Michael Allen PeacockServed together 2004-2005
- Norman Alan StennettServed together 2004-2005
- Philip Bernard HiltonServed together 2003-2005
- Simon Aubrey Cracroft Frere CookServed together 2002-2005
- Julian Hickman ProctorServed together 2001-2005
- Robert Maynard HardyServed together 2001-2005
- Andrew Charles InglisServed together 2000-2005
- Anthony James Longmore WorthServed together 2000-2005
- Bridget Katharine Cracroft EleyServed together 2000-2005
- Clifford Graham Rowles NicholsonServed together 2000-2005
- David Ian RichardsonServed together 2000-2005
- David John Leethem NelstropServed together 2000-2005
- David Thomas ToddServed together 2000-2005
- Dymoke, John Lindley Marmion, Lt ColServed together 2000-2005
- Elizabeth Ann CoyServed together 2000-2005
- Eric Stephen CarterServed together 2000-2005
- Graham Alan TempletonServed together 2000-2005
- Harold David HillServed together 2000-2005
- James Charles Stewart Reynolds Milligan-ManbyServed together 2000-2005
- Jane PridgeonServed together 2000-2005
- John Robert ElkingtonServed together 2000-2005
- Kenneth Scott JonesServed together 2000-2005
- Margie Elizabeth Ward-ReadServed together 2000-2005
- Martin PoucherServed together 2000-2005
- Peter GilbertServed together 2000-2005
- Peter RussonServed together 2000-2005
- Peter VergetteServed together 2000-2005
- Reverend David John CreaseyServed together 2000-2005
- Richard Arthur BevanServed together 2000-2005
- Simon Nicholas RoughtonServed together 2000-2005
- Simon Wenham WhittonServed together 2000-2005
- William David Scriven WilliamsServed together 2000-2005
- William Tumilty RamsayServed together 2000-2005
- Worsley, Charles John, the Earl of YarboroughServed together 2000-2005
- Rev Alan John Robson2003-2005
- Arthur William Lockwood2000-2005 dates incomplete
- Bryan Parkinson2000-2005 dates incomplete
- Caroline Mary Thorlby2000-2005 dates incomplete
- Charles Christopher Guy Hunter2000-2005 dates incomplete
- Charles Frederick Harrison2000-2005 dates incomplete
- Charles Lawrence Bembridge2000-2005 dates incomplete
- Dan Spilman Albone2000-2005 dates incomplete
- David Kenneth Baker2000-2005 dates incomplete
- Elwes, Jeremy Gervase Geoffrey Philip, Captain2000-2005 dates incomplete
- Frederick William Anthony Brogden2000-2005 dates incomplete
- George Edward Albone2000-2005 dates incomplete
- George John Bayldon Read2000-2005 dates incomplete
- George Martin Overton2000-2005 dates incomplete
- Henry Stephen Burtt2000-2005 dates incomplete
- Ian McKinnon Clark2000-2005 dates incomplete
- James Charles Rixon Matthews2000-2005 dates incomplete
- James Edwin Guy Walkinton2000-2005 dates incomplete
- James Stuart Beever2000-2005 dates incomplete
- Jeanne Parkes2000-2005 dates incomplete
- John Anthony Lill2000-2005 dates incomplete
- John Barrie Callaghan2000-2005 dates incomplete
- John Edward Brant2000-2005 dates incomplete
- John Francis Rainthorpe2000-2005 dates incomplete
- John Kennard Burkitt2000-2005 dates incomplete
- John Sherwood Good2000-2005 dates incomplete
- John William Rowles2000-2005 dates incomplete
- Keith Heap Gilbert2000-2005 dates incomplete
- Lawrence, Timothy, Hrh the Princess Royal /2000-2005 dates incomplete
- Michael Eric Dickinson2000-2005 dates incomplete
- Michael George Godson2000-2005 dates incomplete
- Michael Hubert Bayldon Read2000-2005 dates incomplete
- Michael Joseph Grimes2000-2005 dates incomplete
- Michael William Laming Brown2000-2005 dates incomplete
- Nelthorpe, Roger Sutton, Lieutenant Colonel2000-2005 dates incomplete
- Philip Martin Good2000-2005 dates incomplete
- Richard Gilbert Needham2000-2005 dates incomplete
- Richard Otley Collett2000-2005 dates incomplete
- Richard William Parker2000-2005 dates incomplete
- Robert Hugh Walkinton2000-2005 dates incomplete
- Robert James Knight2000-2005 dates incomplete
- Robin Maxwell Battle2000-2005 dates incomplete
- Rodney Lancelot St Barbe Vigne2000-2005 dates incomplete
- Shirley Ann Richardson2000-2005 dates incomplete
- Timothy Sambrooke Kelway2000-2005 dates incomplete
- William Henry Strawson2000-2005 dates incomplete
- William Patrick Dawson Holland2000-2005 dates incomplete
- Joseph Patrick Skehel1998-2005 dates incomplete
- Paul Gilbert Blackburn1998-2005 dates incomplete
- Richard Thomas Horobin1998-2005 dates incomplete
- Robert John Watts1998-2005 dates incomplete
- Peter Kirton Dennis1998-2005 dates incomplete
- Charles Herbert Smith1997-2005 dates incomplete
- Alan Newton1997-2005 dates incomplete
- Sir Henry Nicholas Neville1996-2005 dates incomplete
- Samuel Frier1996-2005 dates incomplete
- Eric Hugh Leadbeter1996-2005 dates incomplete
- Robert Peel Charles Cracroft-Eley1996-2005 dates incomplete
- Robert Walter Macdonald Dickinson1996-2005 dates incomplete
- Alan Ernest Gratton1996-2005 dates incomplete
- Edward James Dan Albone1994-2005 dates incomplete
- Richard John Edward Eve1994-2005 dates incomplete
- Robert Hugh Johnson1994-2005 dates incomplete
- John Godfrey Fisher1992-2005 dates incomplete
- Nicholas George Whichcote Playne1992-2005 dates incomplete
- Robert Bentley Nelstrop1992-2005 dates incomplete
- Ian George ReadServed together 2000-2004
- Lady Victoria LeathamServed together 2000-2004
- Emma Jane WoolfsonServed together 2000-2002
- Dennis BurttServed together 2000-2002
- Sir Matthew Alistair GrantServed together 2000-2001
Riseholme Park Farms Ltd 24 people · 1993-2002
- Clive BoundServed together 2001-2002
- David Martin ChiddickServed together 2001-2002
- Dr James WhittinghamServed together 2001-2002
- John Richard Martin RabyServed together 2001-2002
- Robin Douglas GrahamServed together 2001-2002
- Bernard Michael BrearleyServed together 1998-2002
- John Arthur Cadas GodfreyServed together 1996-2002
- Richard Martin EptonServed together 1993-2002
- Richard William PatrickServed together 1993-2002
- William Edward GrantServed together 1993-2002
- Professor Margaret EvansServed together 2000-2001
- John Steven PlumridgeServed together 2000-2001
- Elizabeth Helen Windeyer RevellServed together 2000-2001
- Terence Roger HeffordServed together 1997-2001
- Alan Frederick SpencerServed together 1995-2001
- Raymond John Howick-BakerServed together 1999-2000
- Peter CoulsonServed together 1998-1999
- Paul RoachServed together 1997-1998
- Mark Patrick TinsleyServed together 1995-1997
- Professor John MoverleyServed together 1993-1997
- Geoffrey William RandallServed together 1995-1997
- Peter Edward WhitfieldServed together 1993-1997
- William Stuart HemingtonServed together 1993-1996
- Reginald Cecil DobbsServed together 1993-1995
Exchequergate Farming Company Limited (dissolved 2022) 2 people · until 2000
- Ian Harrup WalterDates incomplete
- Charles Michael Rayner HoltDates incomplete
Willoughby Farms Limited 5 people· 1998-2021
- Kitty Elizabeth Hamilton1998-2021 dates incomplete
- Susan Mary Needham1998-2019 dates incomplete
- Dianna Gay James1998-1999 dates incomplete
- Dennis Tansley Weston1998 dates incomplete
- Nicholas Richard Givron Peck1998 dates incomplete