| 2024 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | The Tampa Bay Conservancy Inc | 990 | Director | - | $0 | $0 | View return |
| 2023 | Wildlands Conservation Inc. | 990 | Board Member | 0 | $0 | $0 | View return |
| 2023 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Florida Audubon Society Inc | 990 | Chair | 5 | $0 | $0 | View return |
| 2022 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | The Tampa Bay Conservancy Inc | 990 | Director | - | $0 | $0 | View return |
| 2022 | Florida Audubon Society Inc | 990 | Chair | 5 | $0 | $0 | View return |
| 2022 | Wildlands Conservation Inc. | 990 | Board Member | 0 | $0 | $0 | View return |
| 2021 | The Tampa Bay Conservancy Inc | 990 | Vice Preside | - | $0 | $0 | View return |
| 2021 | Wildlands Conservation Inc. | 990 | Board Member | 0 | $0 | $0 | View return |
| 2021 | Florida Audubon Society Inc | 990 | Chair | 5 | $0 | $0 | View return |
| 2021 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Wildlands Conservation Inc. | 990 | Board Member | 0 | $0 | $0 | View return |
| 2020 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | The Tampa Bay Conservancy Inc | 990 | Vice Preside | - | $0 | $0 | View return |
| 2020 | Wildlands Conservation Inc. | 990 | Board Member | 0 | $0 | $0 | View return |
| 2020 | Florida Audubon Society Inc | 990 | Chair | 5 | $0 | $0 | View return |
| 2019 | The Tampa Bay Conservancy Inc | 990 | At Large Mem | - | $0 | $0 | View return |
| 2019 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Florida Audubon Society Inc | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2019 | Wildlands Conservation Inc. | 990 | Board Member | 0 | $0 | $0 | View return |
| 2018 | Florida Audubon Society Inc | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2018 | Wildlands Conservation Inc. | 990 | Board Member | 0 | $0 | $0 | View return |
| 2018 | The Tampa Bay Conservancy Inc | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2018 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | The Tampa Bay Conservancy Inc | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2017 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | Wildlands Conservation Inc. | 990 | Secretary | 0 | $0 | $0 | View return |
| 2017 | Florida Audubon Society Inc | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2016 | Florida Greenways and Trails Foundation Inc. | 990EZ | Director (Fmr) | 1.63 | $0 | $0 | View return |
| 2016 | Wildlands Conservation Inc. | 990 | Secretary | 0 | $0 | $0 | View return |
| 2016 | Florida Audubon Society Inc | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2016 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | The Tampa Bay Conservancy Inc | 990 | President | 1 | $0 | $0 | View return |
| 2015 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2015 | The Tampa Bay Conservancy Inc | 990 | President | 1 | $0 | $0 | View return |
| 2015 | Florida Audubon Society Inc | 990 | Public Polic | 1 | $0 | $0 | View return |
| 2015 | Wildlands Conservation Inc. | 990 | Secretary | 0 | $0 | $0 | View return |
| 2014 | The Tampa Bay Conservancy Inc | 990 | President | - | $0 | $0 | View return |
| 2014 | Florida Greenways and Trails Foundation Inc. | 990EZ | Director | 3.19 | $0 | $0 | View return |
| 2014 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2014 | Florida Audubon Society Inc | 990 | Public Polic | 1 | $0 | $0 | View return |
| 2013 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2013 | The Tampa Bay Conservancy Inc | 990 | President | - | $0 | $0 | View return |
| 2012 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2011 | William a Gregory Jr Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |