| 2024 | American Antiquarian Society | 990 | President | 35 | $267,956 | $0 | View return |
| 2023 | American Antiquarian Society | 990 | President | 35 | $260,415 | $0 | View return |
| 2023 | Greater Lowell Road Runners Club | 990EZ | Signature Of | 0 | $0 | - | View return |
| 2023 | Worcester Regional Research Bureau Inc. | 990 | Director | 0.3 | $0 | $0 | View return |
| 2023 | Massachusetts Foundation for Humanities & Public Policy Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | American Antiquarian Society | 990 | President | 35 | $258,362 | $0 | View return |
| 2022 | American Antiquarian Society | 990 | President | 35 | $258,193 | $0 | View return |
| 2022 | Worcester Regional Research Bureau Inc. | 990 | Director | 0.3 | $0 | $0 | View return |
| 2021 | American Antiquarian Society | 990 | President | 35 | $258,362 | $0 | View return |
| 2021 | Worcester Regional Research Bureau Inc. | 990 | Director | 0.3 | $0 | $0 | View return |
| 2020 | Greater Baltimore Cultural Alliance Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Worcester Regional Research Bureau Inc. | 990 | Director | 0.3 | $0 | $0 | View return |
| 2019 | Greater Lowell Road Runners Club | 990EZ | President | 0 | $0 | - | View return |
| 2019 | New Haven Legal Assistance Association Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Greater Baltimore Cultural Alliance Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Greater Lowell Road Runners Club | 990EZ | President | 0 | $0 | - | View return |
| 2018 | New Haven Legal Assistance Association Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Greater Lowell Road Runners Club | 990EZ | President | 0 | $0 | - | View return |
| 2017 | New Haven Legal Assistance Association Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Greater Lowell Road Runners Club | 990EZ | Secretary | 0 | $0 | - | View return |
| 2017 | Maryland Humanities Council Inc. | 990 | Board Of Directors | 1 | $0 | $0 | View return |
| 2016 | New Haven Legal Assistance Association Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Greater Lowell Road Runners Club | 990EZ | Secretary | 2 | $0 | - | View return |
| 2016 | American Council of Learned Societies | 990 | Director Through May 2017 | 2 | $0 | $0 | View return |
| 2015 | New Haven Legal Assistance Association Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Greater Lowell Road Runners Club | 990EZ | Secretary | 0 | $0 | - | View return |
| 2015 | American Council of Learned Societies | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | New Haven Legal Assistance Association Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Kearney Nat Little League 1270205 | 990EZ | Ex Officio | 1 | $0 | - | View return |
| 2014 | Greater Lowell Road Runners Club | 990EZ | Secretary | 0 | $0 | - | View return |
| 2013 | Greater Lowell Road Runners Club | 990EZ | Secretary | 0 | $0 | - | View return |
| 2013 | Kearney Nat Little League 1270205 | 990EZ | Ex Officio | 1 | $0 | - | View return |