| 2024 | Wallace Minot Leonard Foundation | 990PF | Trustee | 2.5 | $26,092 | $0 | View return |
| 2024 | Frank and Elizabeth Keohane Foundation | 990PF | Trustee | 1 | $2,356 | $0 | View return |
| 2024 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | Stanton K-9 Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Belknap Range Trail Tenders | 990PF | Treasurer | 5 | $0 | $0 | View return |
| 2024 | Vermont Historical Society | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Wallace Minot Leonard Foundation | 990PF | Trustee | 2.5 | $22,558 | $0 | View return |
| 2023 | Frank and Elizabeth Keohane Foundation | 990PF | Trustee | 1 | $2,136 | $0 | View return |
| 2023 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2023 | Vermont Historical Society | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Belknap Range Trail Tenders | 990PF | Treasurer | 5 | $0 | $0 | View return |
| 2023 | Boston Symphony Orchestra Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Wallace Minot Leonard Foundation | 990PF | Trustee | 2.5 | $22,429 | $0 | View return |
| 2022 | Frank and Elizabeth Keohane Foundation | 990PF | Trustee | 1 | $2,125 | $0 | View return |
| 2022 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2022 | Vermont Historical Society | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Belknap Range Trail Tenders | 990PF | Treasurer | 5 | $0 | $0 | View return |
| 2022 | Boston Symphony Orchestra Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | Wallace Minot Leonard Foundation | 990PF | Trustee | 2.5 | $24,331 | $0 | View return |
| 2021 | Frank and Elizabeth Keohane Foundation | 990PF | Trustee | 1 | $3,714 | $0 | View return |
| 2021 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2021 | Belknap Range Trail Tenders | 990PF | Treasurer | 5 | $0 | $0 | View return |
| 2021 | Lakes Region Search & Rescue Inc. | 990PF | At Large | 5 | $0 | $0 | View return |
| 2021 | Vermont Historical Society | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Boston Symphony Orchestra Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | Wallace Minot Leonard Foundation | 990PF | Trustee | 2.5 | $21,848 | $0 | View return |
| 2020 | Frank and Elizabeth Keohane Foundation | 990PF | Trustee | 1 | $3,097 | $0 | View return |
| 2020 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2020 | Belknap Range Trail Tenders | 990PF | Treasurer | 2 | $0 | $0 | View return |
| 2020 | Boston Symphony Orchestra Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Frank and Elizabeth Keohane Foundation | 990PF | Trustee | 1 | $2,983 | $0 | View return |
| 2019 | Wallace Minot Leonard Foundation | 990PF | Trustee | 2.5 | $0 | $0 | View return |
| 2019 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2019 | David and Elizabeth Ames Charitable Trust #1082106 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Boston Symphony Orchestra Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Vermont Historical Society | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Isabella Stewart Gardner Museum Inc. | 990 | President, Board Of Trustees | 4 | $0 | $0 | View return |
| 2018 | Wallace Minot Leonard Foundation | 990PF | Trustee | 2.5 | $35,479 | $0 | View return |
| 2018 | Frank and Elizabeth Keohane Foundation | 990PF | Trustee | 1 | $2,732 | $0 | View return |
| 2018 | David and Elizabeth Ames Charitable Trust #1082106 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2018 | Isabella Stewart Gardner Museum Inc. | 990 | President, Board Of Trustees | 4 | $0 | $0 | View return |
| 2018 | Boston Symphony Orchestra Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2017 | Wallace Minot Leonard Foundation | 990PF | Trustee | 2.5 | $35,478 | $0 | View return |
| 2017 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2017 | David and Elizabeth Ames Charitable Trust #1082106 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Isabella Stewart Gardner Museum Inc. | 990 | President, Board Of Trustees | 2 | $0 | $0 | View return |
| 2016 | Dorothy & David Arnold Charitable Tr DBA MILL River Fndation 1001700 | 990PF | Trustee | 1 | $907 | $0 | View return |
| 2016 | David and Elizabeth Ames Charitable Trust #1082106 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | Isabella Stewart Gardner Museum Inc. | 990 | President, Board Of Trustees | 2 | $0 | $0 | View return |
| 2015 | David and Elizabeth Ames Charitable Trust #1082106 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | Isabella Stewart Gardner Museum Inc. | 990 | President, Board Of Truste | 2 | $0 | $0 | View return |
| 2015 | Wellesley College | 990 | Vice Chair | 10 | $0 | $0 | View return |
| 2014 | David and Elizabeth Ames Charitable Trust #1082106 | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2014 | Wellesley College | 990 | Vice Chair | 10 | $0 | $0 | View return |
| 2014 | Isabella Stewart Gardner Museum Inc. | 990 | President, Board Of Trustees | 10 | $0 | $0 | View return |
| 2013 | Wellesley College | 990 | Trustee | 3 | $0 | $0 | View return |
| 2013 | Isabella Stewart Gardner Museum Inc. | 990 | President, Board Of Trustees | 1 | $0 | $0 | View return |