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US nonprofit · EIN 136227441 · Beacon, NYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 136227441) - 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

Mount Gulian Society

Donations deductible
Revenue
$213k
year to 31 December 2024
Expenses
$259k
year to 31 December 2024
Total assets
$854k
$0 liabilities
Net assets
$854k
assets less liabilities
Directors and trustees
10
7.1y av
Staff
3
20 volunteers
Left since last filing
0
no seats appear to have opened
Officers and senior staff
1
named in Part VII
How am I connected?

Mount Gulian Society's network

10 people2 organisationsi10 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (10). Violet dotted lines (2) 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

10 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 11 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Barbara SparacioTrustee2018
8 yrs
Diane SedoreTrustee2018
8 yrs
Dylan HarrisTrustee2021
5 yrs
Gretchen CarpenterCompany secretary2018
8 yrs
Jessica TerwilligerTreasurer2021
5 yrs
Joan PagonesTrustee2018
8 yrs
Joseph WittmannTrustee2022
4 yrs
Michael ToddVice Preside2018
8 yrs
Ralph HafnerPresident2018
8 yrs
Robert JohnsonTrustee2021
5 yrs
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
Elaine HayesExecutive Disince 2018

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
Elaine HayesExecutive Di40$100k
Gretchen CarpenterTrustee0.5$0
Ralph HafnerPresident0.5$0
Dylan HarrisTrustee0.5$0
Robert JohnsonSecretary0.5$0
Joan PagonesTrustee0.5$0
Diane SedoreTrustee0.5$0
Barbara SparacioTrustee0.5$0
Jessica TerwilligerTreasurer0.5$0
Michael ToddVice Preside0.5$0
Joseph WittmannTrustee0.5$0

About

Legal name
Mount Gulian Society
EIN
136227441
Address
145 Sterling St, Beacon, NY, 12508-1483
State
New York
Mission
Sharing and teaching the local history of the historic site with the public, through various activities and programs. (as filed on the Form 990)
Activity (NTEE)
A82Z 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)
Formed
1967
Principal officer
Jessica Terwilliger (as named on the Form 990)
IRS ruling date
1 September 1967
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 filingsBarbara Sparacio
≥8years on the filingsDiane Sedore
≥8years on the filingsGretchen Carpenter
≥8years on the filingsJoan Pagones

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
$854k
Total liabilities
$0
Net assets or fund balances
$854k
Contributions and grants received
$41k
Program service revenue
$108k
Employees
3
Volunteers
20