| 2024 | Western Great Lakes Bird and Bat O | 990 | Past Chair | - | $0 | $0 | View return |
| 2024 | The Malvin and Greta Roesch Foundation | 990PF | Manager-As Needed | 0 | $0 | $0 | View return |
| 2024 | Jane and Tom Tang Foundation for Education Inc. | 990PF | Trustee-Hours As Needed | 0 | $0 | $0 | View return |
| 2023 | Jane and Tom Tang Foundation for Education Inc. | 990PF | Trustee-Hours As Needed | 0 | $0 | $0 | View return |
| 2023 | The Malvin and Greta Roesch Foundation | 990PF | Manager-As Needed | 0 | $0 | $0 | View return |
| 2023 | Western Great Lakes Bird and Bat O | 990 | Past Chair & Board Member | 5 | $0 | $0 | View return |
| 2023 | Wisconsin Society for Ornithology Inc. | 990 | Member At Large (Thru 5/2023) | 2 | $0 | $0 | View return |
| 2023 | Children'S Scholarship Fund of Baltimore Inc | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2023 | Pennsylvania Virtual Charter School | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2022 | Western Great Lakes Bird and Bat O | 990 | Past Chair & Board Member | 5 | $0 | $0 | View return |
| 2022 | Jane and Tom Tang Foundation for Education Inc. | 990PF | Trustee-Hours As Needed | 0 | $0 | $0 | View return |
| 2022 | Wisconsin Society for Ornithology Inc. | 990 | Badger Birder Editor | 8 | $0 | $0 | View return |
| 2022 | Pennsylvania Virtual Charter School | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2022 | Children'S Scholarship Fund of Baltimore Inc | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2021 | Western Great Lakes Bird and Bat O | 990 | Board Member | 10 | $0 | $0 | View return |
| 2021 | Jane and Tom Tang Foundation for Education Inc. | 990PF | Trustee-Hours As Needed | 0 | $0 | $0 | View return |
| 2021 | Wisconsin Society for Ornithology Inc. | 990 | Badger Birder Editor | 8 | $0 | $0 | View return |
| 2021 | Children'S Scholarship Fund of Baltimore Inc | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2021 | Pennsylvania Virtual Charter School | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2020 | Jane and Tom Tang Foundation for Education Inc. | 990PF | Trustee-Hours As Needed | 0 | $0 | $0 | View return |
| 2020 | Western Great Lakes Bird and Bat O | 990 | Board Member | 5 | $0 | $0 | View return |
| 2020 | Wisconsin Society for Ornithology Inc. | 990 | Badger Birder Editor | 8 | $0 | $0 | View return |
| 2020 | Children'S Scholarship Fund of Baltimore Inc | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2020 | Pennsylvania Virtual Charter School | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2019 | Wisconsin Society for Ornithology Inc. | 990 | Badger Birder Editor | 8 | $0 | $0 | View return |
| 2019 | Western Great Lakes Bird and Bat O | 990 | Board Member | 10 | $0 | $0 | View return |
| 2019 | Pennsylvania Virtual Charter School | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2018 | Wisconsin Society for Ornithology Inc. | 990 | Badger Birder Editor | 8 | $0 | $0 | View return |
| 2018 | Pennsylvania Virtual Charter School | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2017 | Wisconsin Society for Ornithology Inc. | 990 | Badger Birder Editor | 8 | $0 | $0 | View return |
| 2017 | In Our Backyard | 990 | Member | 1 | $0 | $0 | View return |
| 2016 | Wisconsin Society for Ornithology Inc. | 990 | Badger Birder Editor | 3 | $0 | $0 | View return |
| 2015 | Wisconsin Society for Ornithology Inc. | 990 | Newsletter Editor | 3 | $0 | $0 | View return |
| 2014 | Wisconsin Society for Ornithology Inc. | 990 | Newsletter Editor | 3 | $0 | $0 | View return |