| 2025 | Williamson Family Foundation | 990PF | Co-Trustee | 2 | $0 | $0 | View return |
| 2024 | Northwest Justice Project | 990 | Vice President | 2 | $0 | $0 | View return |
| 2024 | Washington Attorneys Assisting Community Organizations | 990 | Vice President | 2 | $0 | $0 | View return |
| 2024 | Bermudian Sports Club | 990EZ | Secretary | 1 | $0 | $0 | View return |
| 2024 | Williamson Family Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2024 | Sugar Land Citizens Police Academy Alumni Assoc | 990EZ | Director, Position 2 | 1 | $0 | $0 | View return |
| 2024 | Groton Community School Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2024 | Petaluma Health Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Williamson Family Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2023 | Washington Attorneys Assisting Community Organizations | 990 | Vice President | 2 | $0 | $0 | View return |
| 2023 | Northwest Justice Project | 990 | Board Member | 2 | $0 | $0 | View return |
| 2023 | Petaluma Health Center Inc | 990 | Board Member | 2 | $0 | $0 | View return |
| 2022 | Washington Attorneys Assisting Community Organizations | 990 | Vice President | 2 | $0 | $0 | View return |
| 2022 | Willamettans | 990 | Recording Secretary | 15 | $0 | $0 | View return |
| 2022 | Williamson Family Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2022 | The Mothers Club of Hadley Inc | 990EZ | Treasurer | 1 | $0 | $0 | View return |
| 2022 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | 470 Pleasant Street Holdings Company Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Williamson Family Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2021 | The Mothers Club of Hadley Inc | 990EZ | Treasurer | 1 | $0 | $0 | View return |
| 2021 | Washington Attorneys Assisting Community Organizations | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | 470 Pleasant Street Holdings Company Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Williamson Family Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2020 | The Mothers Club of Hadley Inc | 990EZ | Treasurer | 1 | $0 | $0 | View return |
| 2020 | Washington Attorneys Assisting Community Organizations | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | Marianna Historic Trust | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2020 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | 470 Pleasant Street Holdings Company Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Williamson Family Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2019 | Marianna Historic Trust | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2018 | American Wirehaired Pointing Griffon Association | 990EZ | Secretary | 5 | $0 | $0 | View return |
| 2018 | Washington Attorneys Assisting Community Organizations | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Cfd Volunteer Fund Inc. | 990 | Member | 1 | $0 | $0 | View return |
| 2018 | 470 Pleasant Street Holdings Company Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Marianna Historic Trust | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2018 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | American Wirehaired Pointing Griffon Association | 990EZ | Secretary | 5 | $0 | - | View return |
| 2017 | Marianna Historic Trust | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2017 | 470 Pleasant Street Holdings Company Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | 470 Pleasant Street Holdings Company Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Marianna Historic Trust | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2016 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Marianna Historic Trust | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2015 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | 470 Pleasant Street Holdings Company Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | 470 Pleasant Street Holdings Company Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | The Philanthropy Connection Inc Formerly Women Grant-Makers of Mass | 990 | Director | 3 | $0 | $0 | View return |
| 2014 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Marianna Historic Trust | 990 | Vice Pres | - | $0 | $0 | View return |
| 2013 | Marianna Historic Trust | 990 | Vice Pres | - | $0 | $0 | View return |
| 2013 | Planned Parenthood League of Massachusetts Inc. | 990 | Director | 1 | $0 | $0 | View return |