| 2024 | Center for Plant Conservation Inc. | 990 | Executive Director | 40 | $41,538 | $0 | View return |
| 2024 | Highstead Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Sonoma Botanical Garden | 990PF | Prev Exec Director | 40 | $112,886 | $1,750 | View return |
| 2023 | Highstead Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Sonoma Botanical Garden | 990PF | Executive Director | 40 | $200,008 | $5,750 | View return |
| 2022 | Friends of the National Arboretum Inc. | 990 | Member | 1 | $0 | $0 | View return |
| 2022 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Botanic Gardens Conservation International Us Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2022 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Highstead Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Sonoma Botanical Garden | 990PF | Executive Director | 40 | $191,668 | $5,750 | View return |
| 2021 | Highstead Foundation Inc. | 990PF | Director | 1 | $1,864 | $0 | View return |
| 2021 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | Friends of the National Arboretum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Botanic Gardens Conservation International Us Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2020 | Sonoma Botanical Garden | 990PF | Executive Director | 40 | $133,333 | $4,000 | View return |
| 2020 | Highstead Foundation Inc. | 990PF | Director | 1 | $1,864 | $0 | View return |
| 2020 | Friends of the National Arboretum Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | Botanic Gardens Conservation International Us Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | The Perpetual Care Fund Administered by the Green-Wood Cemetery as Trustee | 990 | Director (Through 12/2019) | 0.5 | $0 | $0 | View return |
| 2019 | The Green-Wood Historic Fund Inc | 990 | Director (Through 12/2019) | 1 | $0 | $0 | View return |
| 2019 | The Green-Wood Cemetery | 990 | Director (Through 12/2019) | 1 | $0 | $0 | View return |
| 2019 | Friends of the National Arboretum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Botanic Gardens Conservation International Us Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2018 | Friends of the National Arboretum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | The Perpetual Care Fund Administered by the Green-Wood Cemetery as Trustee | 990 | Director | 0.5 | $0 | $0 | View return |
| 2018 | The Green-Wood Historic Fund Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2018 | Botanic Gardens Conservation International Us Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2018 | The Green-Wood Cemetery | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | The Green-Wood Historic Fund Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | Brooklyn Botanic Garden Corporation | 990 | President | 40 | $437,394 | $0 | View return |
| 2017 | The Green-Wood Cemetery | 990 | Director | 1 | $11,000 | $0 | View return |
| 2017 | The Perpetual Care Fund Administered by the Green-Wood Cemetery as Trustee | 990 | Director | 0.5 | $0 | $11,000 | View return |
| 2017 | The Green-Wood Historic Fund Inc | 990 | Director | 0.5 | $0 | $11,000 | View return |
| 2017 | Botanic Gardens Conservation International Us Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2017 | Friends of the National Arboretum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Center for Plant Conservation Inc. | 990 | Trustee | 3 | $0 | $0 | View return |
| 2016 | Brooklyn Botanic Garden Corporation | 990 | President | 40 | $351,015 | $0 | View return |
| 2016 | The Green-Wood Cemetery | 990 | Trustee | 3 | $10,000 | $0 | View return |
| 2016 | The Green-Wood Historic Fund Inc | 990 | Director | 0.5 | $0 | $10,000 | View return |
| 2016 | The Perpetual Care Fund Administered by the Green-Wood Cemetery as Trustee | 990 | Trustee | 1 | $0 | $10,000 | View return |
| 2016 | Friends of the National Arboretum Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | Botanic Gardens Conservation International Us Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2016 | Center for Plant Conservation Inc. | 990 | Trustee | 2.5 | $0 | $0 | View return |
| 2015 | Brooklyn Botanic Garden Corporation | 990 | President | 40 | $291,210 | $0 | View return |
| 2015 | The Green-Wood Cemetery | 990 | Trustee | 1 | $7,500 | $0 | View return |
| 2015 | The Green-Wood Historic Fund Inc | 990 | Director | 0.5 | $0 | $7,500 | View return |
| 2015 | The Perpetual Care Fund Administered by the Green-Wood Cemetery as Trustee | 990 | Trustee | 1 | $0 | $7,500 | View return |
| 2015 | Brooklyn Chamber of Commerce Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | Friends of the National Arboretum Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | Botanic Gardens Conservation International Us Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2015 | Brooklyn Alliance Inc. | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2015 | Center for Plant Conservation Inc. | 990 | Trustee | 2.5 | $0 | $0 | View return |
| 2014 | Brooklyn Botanic Garden Corporation | 990 | President | 40 | $256,345 | $0 | View return |
| 2014 | The Green-Wood Cemetery | 990 | Trustee | 1 | $10,000 | $0 | View return |
| 2014 | The Green-Wood Historic Fund Inc | 990 | Director | 0.5 | $0 | $10,000 | View return |
| 2014 | The Perpetual Care Fund Administered by the Green-Wood Cemetery as Trustee | 990 | Trustee | 1 | $0 | $10,000 | View return |
| 2014 | Center for Plant Conservation Inc. | 990 | Trustee | 2.5 | $0 | $0 | View return |
| 2014 | Friends of the National Arboretum Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2014 | Brooklyn Chamber of Commerce Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | Brooklyn Botanic Garden Corporation | 990 | President | 40 | $257,119 | $0 | View return |
| 2013 | The Green-Wood Cemetery | 990 | Trustee | 1 | $7,500 | $0 | View return |
| 2013 | The Green-Wood Historic Fund Inc | 990 | Director | 1 | $0 | $7,500 | View return |
| 2013 | Brooklyn Chamber of Commerce Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | Friends of the National Arboretum Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | Center for Plant Conservation Inc. | 990 | Trustee | 2.5 | $0 | $0 | View return |