| 2025 | Mac Valves Foundation | 990PF | Director And Sec/Treasurer | 0 | $0 | $0 | View return |
| 2024 | The Martha G Welch Center for Emotional Connection | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Mac Valves Foundation | 990PF | Director And Sec/Treasurer | 0 | $0 | $0 | View return |
| 2023 | Mac Valves Foundation | 990PF | Director And Sec/Treasurer | 0 | $0 | $0 | View return |
| 2023 | The Martha G Welch Center for Emotional Connection | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Mac Valves Foundation | 990PF | Director And Sec/Treasurer | 0 | $0 | $0 | View return |
| 2022 | The Martha G Welch Center for Emotional Connection | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Mac Valves Foundation | 990PF | Director And Sec/Treasurer | 0 | $0 | $0 | View return |
| 2020 | Mac Valves Foundation | 990PF | Director And Sec/Treasurer | 0 | $0 | $0 | View return |
| 2020 | Beta Chapter House Association of Alpha Phi | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | Mac Valves Foundation | 990PF | Director And Sec/Treasurer | 0 | $0 | $0 | View return |
| 2018 | Mac Valves Foundation | 990PF | Director And Secy/Treasure | 0 | $0 | $0 | View return |
| 2017 | Mac Valves Foundation | 990PF | Director And Secy/Treasure | 0 | $0 | $0 | View return |
| 2016 | Mac Valves Foundation | 990PF | Director And Secy/Treasure | 0 | $0 | $0 | View return |
| 2015 | Mac Valves Foundation | 990PF | Director And Secy/Treasure | 0 | $0 | $0 | View return |
| 2014 | New England Electric Railway Historical Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2014 | Mac Valves Foundation | 990PF | Director And Secy/Treasure | 0 | $0 | $0 | View return |
| 2014 | Hamilton Southeastern Royal Guardians Inc. | 990EZ | Treasurer | 8 | $0 | $0 | View return |
| 2013 | Mac Valves Foundation | 990PF | Director And Secy/Treasure | 0 | $0 | $0 | View return |
| 2013 | New England Electric Railway Historical Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2011 | Mac Valves Foundation | 990PF | Director And Secy/Treasure | 0 | $0 | $0 | View return |
| 2010 | Mac Valves Foundation | 990PF | Director And Secy/Treasure | 0 | $0 | $0 | View return |
| 2009 | Mac Valves Foundation | 990PF | Director And Secy/Treasurer | 0 | $0 | $0 | View return |