| 2024 | Firebird Foundation for Anthropological Research Inc. | 990PF | President/Director | 10 | $0 | $0 | View return |
| 2023 | Firebird Foundation for Anthropological Research Inc. | 990PF | Pres./Sec./Treas./Director | 10 | $0 | $0 | View return |
| 2023 | Borneo Research Council | 990 | President | 1 | $0 | $0 | View return |
| 2023 | Rangeley Lakes Heritage Trust Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Global Education Benchmark Group | 990 | Chair | 1 | $0 | $0 | View return |
| 2023 | Chewonki Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Rangeley Lakes Heritage Trust Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Borneo Research Council | 990 | President | 1 | $0 | $0 | View return |
| 2022 | Firebird Foundation for Anthropological Research Inc. | 990PF | Pres./Sec./Treas./Director | 10 | $0 | $0 | View return |
| 2022 | Global Education Benchmark Group | 990 | Chair | 1 | $0 | $0 | View return |
| 2022 | Chewonki Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Rangeley Lakes Heritage Trust Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Firebird Foundation for Anthropological Research Inc. | 990PF | Pres./Sec./Treas./Director | 10 | $0 | $0 | View return |
| 2021 | American Friends of the Royal Anthropological Institute | 990EZ | Trustee | 1 | $0 | $0 | View return |
| 2021 | Borneo Research Council | 990 | President | 1 | $0 | $0 | View return |
| 2021 | Global Education Benchmark Group | 990 | Secretary | - | $0 | $0 | View return |
| 2021 | Chewonki Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Firebird Foundation for Anthropological Research Inc. | 990PF | President | 10 | $54,000 | $12,418 | View return |
| 2020 | Rangeley Lakes Heritage Trust Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Borneo Research Council | 990EZ | President | 1 | $0 | $0 | View return |
| 2020 | American Friends of the Royal Anthropological Institute | 990EZ | Trustee | 1 | $0 | $0 | View return |
| 2020 | Chewonki Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Global Education Benchmark Group | 990 | Secretary | - | $0 | $0 | View return |
| 2019 | American Friends of the Royal Anthropological Institute | 990EZ | Director | 0 | $0 | - | View return |
| 2019 | Mountain Conservancy of Northern New England | 990EZ | Treasurer | 0 | $0 | - | View return |
| 2019 | Chewonki Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Global Education Benchmark Group | 990 | Secretary | 1.5 | $0 | $0 | View return |
| 2018 | Mountain Conservancy of Northern New England | 990EZ | Treasurer | 0 | $0 | - | View return |
| 2018 | Maine Mountain Collaborative | 990 | Treasurer | 0 | $0 | $0 | View return |
| 2018 | American Friends of the Royal Anthropological Institute | 990EZ | Director | 0 | $0 | - | View return |
| 2018 | Global Education Benchmark Group | 990 | Secretary | 1 | $0 | $0 | View return |
| 2018 | Chewonki Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | American Friends of the Royal Anthropological Institute | 990EZ | Director | 0 | $0 | - | View return |
| 2017 | Maine Mountain Collaborative | 990 | Treasurer | 0 | $0 | $0 | View return |
| 2017 | Mountain Conservancy of Northern New England | 990EZ | Treasurer | 0 | $0 | - | View return |
| 2017 | Rangeley Lakes Heritage Trust Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Maine Mountain Collaborative | 990 | Treasurer | 0 | $0 | $0 | View return |
| 2017 | Chewonki Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Global Education Benchmark Group | 990 | Secretary | 1 | $0 | $0 | View return |
| 2016 | Maine Mountain Collaborative | 990EZ | Treasurer | 0 | $0 | - | View return |
| 2016 | Mountain Conservancy of Northern New England | 990EZ | Treasurer | 0 | $0 | - | View return |
| 2016 | American Friends of the Royal Anthropological Institute | 990EZ | Director | 0 | $0 | - | View return |
| 2016 | Rangeley Lakes Heritage Trust Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Chewonki Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Global Education Benchmark Group | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | American Friends of the Royal Anthropological Institute | 990EZ | Director | 0 | $0 | - | View return |
| 2015 | Rangeley Lakes Heritage Trust Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Rangeley Lakes Heritage Trust Inc. | 990 | Director | 1 | $0 | $0 | View return |