| 2023 | Hope Community Center Inc. | 990 | President/Director | 4 | $0 | $0 | View return |
| 2022 | Hope Community Center Inc. | 990 | President/Director | 4 | $0 | $0 | View return |
| 2021 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $92,288 | $0 | View return |
| 2021 | African Elephant Conservation Trust | 990 | Exec Director | 40 | $0 | $0 | View return |
| 2021 | Hope Community Center Inc. | 990 | President/Director | 4 | $0 | $0 | View return |
| 2020 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $87,894 | $0 | View return |
| 2020 | African Elephant Conservation Trust | 990 | Exec Director | 40 | $0 | $0 | View return |
| 2020 | Hope Community Center Inc. | 990 | Vice President/Director | 4 | $0 | $0 | View return |
| 2019 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $85,334 | $0 | View return |
| 2019 | African Elephant Conservation Trust | 990 | Exec Director | 40 | $0 | $0 | View return |
| 2019 | Hope Community Center Inc. | 990 | Director | 4 | $0 | $0 | View return |
| 2018 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $86,602 | $0 | View return |
| 2018 | African Elephant Conservation Trust | 990 | Exec Director | 40 | $0 | $86,602 | View return |
| 2018 | Hope Community Center Inc. | 990 | Director | 4 | $0 | $0 | View return |
| 2017 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $79,335 | $0 | View return |
| 2017 | African Elephant Conservation Trust | 990 | Exec Director | 40 | $0 | $79,335 | View return |
| 2017 | Hope Community Center Inc. | 990 | Director | 4 | $0 | $0 | View return |
| 2016 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $85,140 | $0 | View return |
| 2016 | African Elephant Conservation Trust | 990 | Exec Director | 40 | $0 | $85,140 | View return |
| 2016 | Hope Community Center Inc. | 990 | Director | 3 | $0 | $0 | View return |
| 2015 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $0 | $77,400 | View return |
| 2015 | African Elephant Conservation Trust | 990 | Exec Director | 40 | $0 | $77,400 | View return |
| 2015 | Hope Community Center Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $0 | $79,900 | View return |
| 2014 | Hope Community Center Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2013 | Amboseli Trust for Elephants | 990 | Exec Director | 40 | $77,400 | $0 | View return |
| 2013 | Hope Community Center Inc. | 990 | Director | 2 | $0 | $0 | View return |