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Governance Register
US nonprofit · EIN 066038865 · Madison, CTiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 066038865) - 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 tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2024: assets, liabilities, staff, website, telephone, pay.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). 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

Madison Historical Society Inc's network

17 people3 organisationsi17 people and 3 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (17). Violet dotted lines (3) 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

17 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.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 18 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Dennis FlynnVice President2018
8 yrs
Diana HartmanDirector2018
8 yrs
DOE BoyleCompany secretary2018
8 yrs
Ginny TriolaDirector2018
8 yrs
Henry GriggsDirector2023
3 yrs
James MattesonTreasurer2018
8 yrs
Jennifer SimpsonDirector2023
3 yrs
Mark EdmistonPresident2018
8 yrs
Maryanne HarmuthVice President2019
7 yrs
Maureen BesharDirector2023
3 yrs
Raymond CampDirector2018
8 yrs
Robert GundersenDirector2018
8 yrs
Robert KachDirector2019
7 yrs
Toby ScottDirector2021
5 yrs
Tricia RoystonDirector2018
8 yrs
Victoria ClementDirector2018
8 yrs
Walter WelshDirector2021
5 yrs
Under 5 years5 to 6 years6 years or moreShow all 17 →

Pay and hours

year to 31 December 2024iFrom 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
Maryanne HarmuthPresident1$0
Toby ScottDirector1$0
Alice SmithDirector1$0
Mark EdmistonDirector4$0
Diana HartmanDirector1$0
Jennifer SimpsonDirector1$0
Walter WelshDirector1$0
Henry GriggsDirector1$0
Dennis FlynnVice President1$0
Ginny TriolaDirector1$0
Tricia RoystonDirector1$0
Raymond CampDirector1$0
Doe BoyleSecretary1$0
James MattesonTreasurer4$0

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

About

Legal name
Madison Historical Society Inc
EIN
066038865
Address
Po Box 17, Madison, CT, 06443-0017
State
Connecticut
Mission
Collection, preservation and documentation of items with historical importance to the town of madison, ct for exhibition and educational purposes. (as filed on the Form 990)
Activity (NTEE)
A54Z 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
5 (IRS master file code)
IRS ruling date
1 December 1962
Status
Code 01 (unconditional exemption)
Form 990 filings on record
6, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsDennis Flynn
≥8years on the filingsDiana Hartman
≥8years on the filingsDOE Boyle
≥8years on the filingsGinny Triola

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$608k
Total liabilities
$11k
Net assets or fund balances
$597k
Contributions and grants received
$97k
Program service revenue
$0
Employees
4
Volunteers
30