Hillwood Estate Museum & Gardens
Donations deductibleHillwood Estate Museum & Gardens' network
24 people2 organisationsi24 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (24). 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
24 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 24 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 |
|---|---|---|---|
| Alison Cady Martin (also filed as Alison Martin) | Trustee | 2019 | 7 yrs |
| Amy Meadows | Assistant Treasurer | 2019 | 7 yrs |
| Andrew D Iverson (also filed as Andrew Iverson) | Trustee | 2019 | 7 yrs |
| Beth Newburger | Trustee | 2021 | 5 yrs |
| Donna Roberts | Trustee | 2021 | 5 yrs |
| Elizabeth Odom | First Vice President | 2023 | 3 yrs |
| Ellen Macneille Charles | President Emerita | 2019 | 7 yrs |
| Gail Berry West | Trustee | 2019 | 7 yrs |
| Joshua Hildreth | Trustee | 2019 | 7 yrs |
| Kathryn Vige Hicks | Company secretary | 2019 | 7 yrs |
| Lucy S Rhame | Treasurer | 2019 | 7 yrs |
| Mark Lowham | Trustee | 2019 | 7 yrs |
| Mary Emerson Slimp | President | 2021 | 5 yrs |
| Michele Hartlove | Trustee | 2024 | 2 yrs |
| Nedenia C Rumbough | Trustee | 2019 | 7 yrs |
| Rick J Fernandez | Trustee | 2023 | 3 yrs |
| Sally E Chapoton | Trustee | 2019 | 7 yrs |
| Sara O'Keefe | Trustee | 2021 | 5 yrs |
| Skip Sroka | Trustee | 2023 | 3 yrs |
| Sophie Ghezai | Trustee | 2021 | 5 yrs |
| Sophie Hawkins | Trustee | 2019 | 7 yrs |
| Stanley H Rumbough | Trustee | 2019 | 7 yrs |
| Susan Bollendorf | Vice President | 2019 | 7 yrs |
| W Brett Rees | Trustee | 2019 | 7 yrs |
Officers and senior leadership
11 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Audra Kelly | Director | since 2022 |
| Brian Barr | Director of Horticulture | 2019 |
| Brian Greenfield | Sr Head of Engineering & Sustainabiity | 2021 |
| Douglas Rose | Director of Finance | since 2019 |
| ED Vreeland | Director of Operations and Technology | since 2020 |
| Jessica Bonilla | Director of Horticulture | 2024 |
| Kate Markert | Executive Director | since 2019 |
| Lynn Rossotti | Director of External Affairs | since 2019 |
| Moulaye SY | Director of Finance | 2024 |
| Samantha Hernandez | Director of Human Resources | since 2019 |
| Wilfried Zeisler | Chief Curator | since 2019 |
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 |
|---|---|---|---|---|---|
| Kate Markert | Executive Director | 40 | $479k | $60k | |
| Ed Vreeland | Director of Operations and | 40 | $186k | $32k | |
| Wilfried Zeisler | Chief Curator | 40 | $185k | $21k | |
| Moulaye Sy | Director of Finance | 40 | $182k | $36k | |
| Lynn Rossotti | Director of External Affai | 40 | $177k | $39k | |
| Samantha Hernandez | Director of Human Resource | 40 | $175k | $39k | |
| Jessica Bonilla | Director of Horticulture | 40 | $113k | $34k | |
| Elizabeth Odom | First Vice President | 2 | $0 | ||
| Ellen Macneille Charles | President Emerita | 2 | $0 | ||
| Amy Meadows | Trustee | 1 | $0 | ||
| Kathryn Vige Hicks | Secretary | 1 | $0 | ||
| Lucy S Rhame | Treasurer | 1 | $0 | ||
| Skip Sroka | Trustee | 1 | $0 | ||
| Susan Bollendorf | Vice President | 1 | $0 | ||
| Joshua Hildreth | Trustee | 1 | $0 | ||
| Alison Cady Martin | Trustee | 1 | $0 | ||
| Sara O'keefe | Trustee | 1 | $0 | ||
| Donna Roberts | Trustee | 1 | $0 | ||
| Nedenia C Rumbough | Trustee | 1 | $0 | ||
| Stanley H Rumbough | Trustee | 1 | $0 | ||
| Robert Shapiro | Trustee | 1 | $0 | ||
| Gail Berry West | Trustee | 1 | $0 | ||
| Mary Emerson Slimp | President | 2 | $0 | ||
| Michele Hartlove | Trustee | 1 | $0 | ||
| Sophie Hawkins | Trustee | 1 | $0 | ||
| Andrew Inverson | Trustee | 1 | $0 |
About
- Legal name
- Hillwood Estate Museum & Gardens
- EIN
- 526080752
- Address
- 4155 Linnean Ave Nw, Washington, DC, 20008-3806
- State
- District of Columbia
- Mission
- Hillwood estate, museum & garden's (hillwood) mission is to share the renowned art collections, exceptional gardens and related public and educational programs with a wide and diverse audience. Since its opening, hillwood has served hundreds-of-thousands of visitors, including local and visiting members of the general public, families (traditional and non-traditional), curators and scholars... (as filed on the Form 990)
- 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
- 9 (IRS master file code)
- Formed
- 1967
- Principal officer
- Amy Meadows (as named on the Form 990)
- IRS ruling date
- 1 August 2019
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 6, latest 2024
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥7years on the filingsAlison Cady Martin
≥7years on the filingsAmy Meadows
≥7years on the filingsAndrew D Iverson
≥7years on the filingsEllen Macneille Charles
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
- $437.8m
- Total liabilities
- $1m
- Net assets or fund balances
- $436.8m
- Contributions and grants received
- $2.7m
- Program service revenue
- $1.3m
- Employees
- 173
- Volunteers
- 362
Filed finances
1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2024 | $20.8m | $16.1m | $4.7m |
As filed on the IRS Form 990. US dollars.
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.Hillwood Estate, Museum & Gardens 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: DC Department of Licensing and Consumer Protection (DLCP), corporate registrations (opendata.dc.gov). Licence: CC BY 4.0. Attribution: DC DLCP. Data last fetched 18 October 2026.
- State
- District of Columbia
- Entity type
- Domestic Nonprofit Corporation
- Status
- Active - In Good Standing
- Formed
- 30 October 1967
- Registered agent
- Corporation Service Company (city and state not held)