Friends of Nassau County Bailey Arboretum
Donations deductibleFriends of Nassau County Bailey Arboretum's network
15 people6 organisationsi15 people and 6 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (15). Violet dotted lines (6) 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
15 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 15 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Andrea Volpe | Vice President | 2018 | 8 yrs |
| Anna Grace Oslansky | Trustee | 2018 | 8 yrs |
| Cora B Michalis | Trustee | 2018 | 8 yrs |
| David Golon | Trustee | 2018 | 8 yrs |
| Dawn Gresalfi | Company secretary | 2019 | 7 yrs |
| Ellen McPartland | Trustee | 2019 | 7 yrs |
| Jan Hagner | Trustee | 2018 | 8 yrs |
| Jonathan Sullivan | Treasurer | 2018 | 8 yrs |
| Margaret L Stacey | Trustee | 2018 | 8 yrs |
| Mary Williams | Trustee | 2019 | 7 yrs |
| Michael Maron | Superintendent | 2018 | 8 yrs |
| Peter Picoli | President | 2018 | 8 yrs |
| Richard Weir | Trustee | 2018 | 8 yrs |
| Susan Mackinnon | Trustee | 2018 | 8 yrs |
| Thomas Hogan | Trustee | 2018 | 8 yrs |
Pay and hours
year to 31 December 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.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Michael Maron | Superintendent | 40 | $92k | ||
| Andrea Volpe | President | 15 | $0 | ||
| David Golon | Vice President | 15 | $0 | ||
| Jonathan Sullivan | Treasurer | 5 | $0 | ||
| Dawn Gresalfi | Secretary | 5 | $0 | ||
| Jan Hagner | Trustee | 2 | $0 | ||
| Mary Williams | Trustee | 2 | $0 | ||
| Susan Mackinnon | Trustee | 5 | $0 | ||
| Richard Weir | Trustee | 5 | $0 | ||
| Thomas Hogan | Trustee | 2 | $0 | ||
| Ellen McPartland | Trustee | 2 | $0 | ||
| Kevin Clowe | Trustee | 2 | $0 | ||
| Susan Giordano | Trustee | 2 | $0 |
About
- Legal name
- Friends of Nassau County Bailey Arboretum
- EIN
- 510190936
- Address
- 194 Bayville Rd, Locust Valley, NY, 11560-2017
- State
- New York
- Mission
- We are a living museum fostering connections between people and the natural world. On the former estate of horticultural enthusiast frank bailey, we enhance and preserve our curated living collections, provide interactive educational programs and community engagement. (as filed on the Form 990)
- Activity (NTEE)
- C410 Environment
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Environment
- Size band
- 6 (IRS master file code)
- Formed
- 1974
- Principal officer
- Andrea Volpe (as named on the Form 990)
- IRS ruling date
- 1 May 1976
- 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 filingsAndrea Volpe
≥8years on the filingsAnna Grace Oslansky
≥8years on the filingsCora B Michalis
≥8years on the filingsDavid Golon
Latest return
year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.- Total assets
- $2.8m
- Total liabilities
- $19k
- Net assets or fund balances
- $2.7m
- Contributions and grants received
- $279k
- Program service revenue
- $8k
- Employees
- 7
- Volunteers
- 20
State registration
1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.Friends Of Nassau County Bailey Arboretum, Inc. likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: New York Department of State, active corporations (data.ny.gov n9v6-gdp6). Licence: New York open data terms of use. Data last fetched 18 October 2026.
- State
- New York
- Entity type
- Domestic Not-For-Profit Corporation
- Status
- Active
- Formed
- 21 November 1974
- Registered agent
- Friends Of Nassau County Bailey Arboretum, Inc. (city and state not held)