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US nonprofit · EIN 043311399 · Mendon, MAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 043311399) - 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 - 990PF for the year to 30 September 2025: assets, liabilities, staff, website, telephone, pay.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.2026 return IRS e-file (TEOS) 2026 release: 990PF for the year to 30 September 2025.Exemption status IRS Automatic Revocation of Exemption List (posted to 13 October 2026).Deductibility IRS Publication 78 data (code PF), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Mendon Historical Society

Donations deductible
Revenue
$9k
year to 30 September 2025
Expenses
$12k
year to 30 September 2025
Total assets
$476k
year to 30 September 2025
Net assets
$476k
assets less liabilities
Directors and trustees
4
2.2 years on average
Left since last filing
0
no seats appear to have opened
Officers and senior staff
1
named in Part VII
Activity
A80
Arts, culture and humanities
Exemption reinstated on 15 January 2016. The IRS had automatically revoked it on 15 February 2011 (after three years without a return). Source: IRS Automatic Revocation of Exemption List, posted to 13 October 2026.
How am I connected?

Mendon Historical Society's network

4 peoplei4 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (4). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

4 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.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.
NameRole as filedSinceOn the board
Lucinda BellairesCompany secretary2025
1 yr
Lynne RobertsVice President2025
1 yr
Richard SchofieldTreasurer2022
4 yrs
Ruth O GradyPresident2025
1 yr
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

1 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Kathleen SchofieldCurator2025

Pay and hours

year to 30 September 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
Ruth O GradyPresident2$0
Lynne RobertsVice President2$0
Lucinda BellairesSecretary2$0
Richard SchofieldTreasurer2$0
Kathleen SchofieldCurator2$0
Ruth CassinelliMember2$0
Jane LowellMember2$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Mendon Historical Society
EIN
043311399
Address
Po Box 196, Mendon, MA, 01756-0196
State
Massachusetts
Activity (NTEE)
A80 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
4 (IRS master file code)
IRS ruling date
1 February 2016
Status
Code 01 (unconditional exemption)
Form 990 filings on record
3, latest 2025
IRS Publication 78
PF (contributions deductible)

Most connected

Longest observed on the filings

≥4years on the filingsRichard Schofield
≥1years on the filingsLucinda Bellaires
≥1years on the filingsLynne Roberts
≥1years on the filingsRuth O Grady

Latest return

year to 30 September 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 September 2025. US dollars, as filed.
Total assets
$476k
Net assets or fund balances
$476k