| 2024 | Butler Conservation Fund Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2023 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2023 | Butler Conservation Fund Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Butler Conservation Fund Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2021 | Butler Conservation Fund Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2020 | Butler Conservation Fund Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2019 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2019 | Butler Conservation Fund Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Preservation League of New York State | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2018 | Preservation League of New York State | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2017 | Preservation League of New York State | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2016 | Preservation League of New York State | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Preservation League of New York State | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2014 | Preservation League of New York State | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2013 | Preservation League of New York State | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2012 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2011 | The Gilbert and Ildiko Butler Family Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |