The red node is John. 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. Click any node to explore.
Person
John Dilwyn Williams
John Dilwyn Williams is a trustee of Cymdeithas Hanes Teuluoedd Gwynedd/Gwynedd Family History Society (since 2024), The Caernarvonshire Historical Society and 3 other charities and a director of 2 companies. Source: Companies House and Charity Commission records.
Director at GŴYL Hanes Cymru I Blant / Children's Festival of Welsh History CYF · Trustee at Cymdeithas Hanes Teuluoedd Gwynedd/Gwynedd Family History Society
- 7 current roles
- 1 previous role
- Served alongside 70 people
Official record Companies House and Charity Commission · updated 18th October 2026
Roles
8 roles across 8 organisations (7 current, 1 previous)Current roles (7)
-
GŴYL Hanes Cymru I Blant / Children's Festival of Welsh History CYFDirector · 2026-present
Official record · Companies House
- Source
- Companies House
- Organisation
- GŴYL Hanes Cymru I Blant / Children's Festival of Welsh History CYF
- Role
- Director
- Appointed
- 2026-04-14
- Record reference
- Company 09486158
Current -
Cymdeithas Hanes Teuluoedd Gwynedd/Gwynedd Family History SocietyTrustee · 2024-present
Official record · Charity Commission
- Source
- Charity Commission
- Organisation
- Cymdeithas Hanes Teuluoedd Gwynedd/Gwynedd Family History Society
- Role
- Trustee
- Appointed
- 2024-09-21
- Record reference
- Charity 512854
Current -
Cwmni Plas Glyn - Y - Weddw LimitedDirector · 1999-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Cwmni Plas Glyn - Y - Weddw Limited
- Role
- Director
- Appointed
- 1999-06-28
- Record reference
- Company 02994771
Current -
The Caernarvonshire Historical SocietyTrustee · Current
Official record · Charity Commission
- Source
- Charity Commission
- Organisation
- The Caernarvonshire Historical Society
- Role
- Trustee
- Record reference
- Charity 239675
Current -
Cymdeithas Hanes Dyffryn NantlleTrustee · Current
Official record · Charity Commission
- Source
- Charity Commission
- Organisation
- Cymdeithas Hanes Dyffryn Nantlle
- Role
- Trustee
- Record reference
- Charity 516051
Current -
Cwmni Plas Glyn'Y-Weddw LimitedTrustee · Current
Official record · Charity Commission
- Source
- Charity Commission
- Organisation
- Cwmni Plas Glyn'Y-Weddw Limited
- Role
- Trustee
- Record reference
- Charity 1070495
Current -
Ymddiriedolaeth Capel Newydd NanhoronTrustee · Current
Official record · Charity Commission
- Source
- Charity Commission
- Organisation
- Ymddiriedolaeth Capel Newydd Nanhoron
- Role
- Trustee
- Record reference
- Charity 1079895
Current
Previous roles (1)
-
Tirwedd Trust LTDDirector · from 1999
Official record · Companies House
- Source
- Companies House
- Organisation
- Tirwedd Trust LTD
- Role
- Director
- Appointed
- 1999-09-06
- Record reference
- Company 02871727
Previous
Charity trustee roles come from the current Charity Commission register, which lists serving trustees only. Company roles, current and past, come from Companies House.
People John has served alongside
70 people across 7 organisationsBased on overlapping official board records. 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.
Cwmni Plas Glyn - Y - Weddw Limited 37 people · 1999-present
- Dr Clare HardingServing together now · since 2026
- Iolo WillliamsServing together now · since 2026
- Rhian HarrisServing together now · since 2020
- Mary Davina Wynne FinchServing together now · since 2020
- Lowri-Ann RichardsServing together now · since 2018
- Ieuan Wyn JonesServing together now · since 2017
- Gwenan Hughes WilliamsServing together now · since 2017
- Elizabeth Mary RickardsServing together now · since 2015
- Karen JonesServing together now · since 2013
- Susan Jennifer WoodServing together now · since 2011
- Christopher Richard Mcgregor ChownServing together now · since 2003
- Gwyndaf Arfon JonesServing together now · since 2003
- John Brinley JonesServing together now · since 1999
- Gwenda Griffith2015-2024
- Dr David William Williams2014-2016
- Peter Davies2012-2016
- Dafydd Rhys Roberts2011-2019
- Anne Griffiths2008-2011
- Bethan Russell Owen2008-2011
- Dr Dafydd Iwan2008-2013
- Jane Hannah Williams2008-2014
- Tom Gloster2008-2019
- Arnold Helmut Carl Kammerling2003-2021
- Elinor Ellis2002-2008
- Williams, Robart Hywel Wyn, Cynghorydd2002-2011
- Annwen Carey-Evans1999-2011
- David Brightmore1999-2002
- David Jeffreys1999-2005
- David John Bowen Lewis1999
- Delyth Lloyd1999-2002
- Dr Gwenda Wynne Evans1999-2004
- Helen Williams Ellis1999-2017
- Huw Meredydd Owen1999-2003
- Mary Hunter Yapp1999-2011
- Nicholas Peter Lancaster Whipp1999-2005
- Richard James Gloster1999-2000
- Robin Bagilhole1999-2001
Cymdeithas Hanes Teuluoedd Gwynedd/Gwynedd Family History Society 13 people · 2024-present
- Bryan JonesServing together now · since 2024
- Dewi Owen JonesServing together now · since 2024
- Dwynwen Lloyd Mather MatherServing together now · since 2024
- Glyn RobertsServing together now · since 2024
- Gwilym Rhys LewisServing together now · since 2024
- Helen HughesServing together now · since 2024
- Ieuan Elis TomosServing together now · since 2024
- Mair Wyn ReadServing together now · since 2024
- Medi Wyn MichaelServing together now · since 2024
- Mr Dafydd RobertsServing together now · since 2024
- Myfyr Wyn HughesServing together now · since 2024
- Pegi AllsopServing together now · since 2024
- Susan ThomasServing together now · since 2024
Cwmni Plas Glyn'Y-Weddw Limited 12 people · Current
- Christopher Richard Mcgregor ChownServing together now
- Clare HardingServing together now
- Elizabeth Mary RickardsServing together now
- Gwenan Hughes WilliamsServing together now
- Ieuan Wyn JonesServing together now
- Iolo WilliamsServing together now
- Karen JonesServing together now
- Lowri-Ann RichardsServing together now
- Mary Wynne FinchServing together now
- Mr Jb JonesServing together now
- Rhian HarrisServing together now
- Susan Jennifer WoodServing together now
Ymddiriedolaeth Capel Newydd Nanhoron 9 people · Current
- Alun Ffred JonesServing together now
- Angela RussellServing together now
- Catherine Llewelyn MorrisServing together now
- Dawi GriffithsServing together now
- Gareth WilliamsServing together now
- John Brynmor HughesServing together now
- Liz Saville Roberts A.S.Serving together now
- Meinir Pierce JonesServing together now
- Robert Hywel Wyn WilliamsServing together now
GŴYL Hanes Cymru I Blant / Children's Festival of Welsh History CYF 4 people · 2026-present
- Nia DownesServing together now · since 2026
- Rheon TomosServing together now · since 2026
- Rhian Eluned TomosServing together now · since 2026
- Tudur Gwyn Llewelyn EllisServing together now · since 2026
The Caernarvonshire Historical Society 2 people · Current
- Lynn Crowther FrancisServing together now
- Nia Watkin PowellServing together now
Cymdeithas Hanes Dyffryn Nantlle 1 person · Current
- Dewi JonesServing together now
Sources
- Companies House
- Officer appointments and resignations.
- Charity Commission
- Register of Charities: current trustees and appointment dates.
- Edition
- Register edition compiled 18th October 2026
- Identity
- Records are treated as the same person only where our identity-matching rules support it. Confirmed relationships are supported by the approved identity-matching evidence and rules. Likely relationships are supported by sufficient evidence to suggest the records concern the same individual, but are not established as confirmed; they are shown with the label “Likely the same person”. How people are matched
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