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Governance Register
US nonprofit · EIN 020260158 · Portsmouth, NHiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 020260158) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 31 March 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Strawbery Banke Museum's network

22 people11 organisationsi22 people and 11 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (22). Violet dotted lines (11) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

22 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 22 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Cynthia Fenneman ChairChair2018
8 yrs
Brett TonksTrustee2024
2 yrs
Christopher W EriksonTreasurer2020
6 yrs
Claudia WUTrustee2024
2 yrs
David KannerTrustee2025
1 yr
David McGrathTrustee2022
4 yrs
David WhiteTrustee2025
1 yr
Jeffrey GilbertCompany secretary2020
6 yrs
Joanna BrodeTrustee2024
2 yrs
Joanna KelleyTrustee2021
5 yrs
Kathy Williams KaneVice Chair2018
8 yrs
Lorne JonesTrustee2024
2 yrs
Marcia CroninTrustee2018
8 yrs
Martha Fuller ClarkTrustee2018
8 yrs
Patrick CollinsTrustee2025
1 yr
Patsy OstranderTrustee2018
8 yrs
Reagan RuedigTrustee2025
1 yr
Sarah EarnestTrustee2022
4 yrs
Scott PueschelTrustee2021
5 yrs
Tamara HendersonTrustee2025
1 yr
Thomas HandTrustee2018
8 yrs
Timothy W DempseyTrustee2018
8 yrs
Under 5 years5 to 6 years6 years or moreShow all 22 →

Officers and senior leadership

4 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Lawrence YerdonPresident & CEOsince 2018
Lawrence Yerdon Former 32523President &2023
Linnea GrimPresident &since 2024
Linnea Grim Hired 3623President &2023

Pay and hours

year to 31 March 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Linnea GrimPresident &40$159k$14k
Cynthia FennemanChair6$0
Kathy Williams KaneVice Chair3$0
Christopher W EriksonTreasurer2$0
Jeffrey GilbertSecretary2$0
Joanna BrodeTrustee1$0
Patrick CollinsTrustee1$0
Marcia CroninTrustee1$0
Martha Fuller ClarkTrustee1$0
Timothy W DempseyTrustee1$0
Sarah EarnestTrustee1$0
Thomas HandTrustee1$0
Lorne JonesTrustee1$0
Joanna KelleyTrustee1$0
David KannerTrustee1$0
Tamara HendersonTrustee1$0
David McGrathTrustee1$0
Patsy OstranderTrustee1$0
Scott PueschelTrustee1$0
Reagan RuedigTrustee1$0
Brett TonksTrustee1$0
David WhiteTrustee1$0
Claudia WuTrustee1$0

About

Legal name
Strawbery Banke Museum
EIN
020260158
Address
14 Hancock St, Portsmouth, NH, 03801-4669
State
New Hampshire
Mission
The museum's mission is to promote understanding of the lives of individuals and the value of community through encounters with the history and ongoing preservation of a new england seaport community. (as filed on the Form 990)
Activity (NTEE)
A540 Arts, culture and humanities
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Arts, Culture & Humanities
Size band
8 (IRS master file code)
Formed
1967
Principal officer
Linnea Grim (as named on the Form 990)
IRS ruling date
1 February 1967
Status
Code 01 (unconditional exemption)
Form 990 filings on record
8, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsCynthia Fenneman
≥8years on the filingsKathy Williams Kane
≥8years on the filingsMarcia Cronin
≥8years on the filingsMartha Fuller Clark

Latest return

year to 31 March 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 March 2025. US dollars, as filed.
Total assets
$25.3m
Total liabilities
$708k
Net assets or fund balances
$24.6m
Contributions and grants received
$3m
Program service revenue
$1.6m
Employees
108
Volunteers
348

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$5.1m$4m$1.1m

As filed on the IRS Form 990. US dollars.