| 2024 | O'Donnell Foundation | 990PF | Vice-Chairman | 3 | $0 | $0 | View return |
| 2024 | The Robert H Dedman Jr Family Foundation | 990PF | Pres, Director & Treas | 1 | $0 | $0 | View return |
| 2024 | The Dedman Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2024 | Southern Methodist University | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | O'Donnell Foundation | 990PF | Vice-Chairman | 3 | $0 | $0 | View return |
| 2023 | The Robert H Dedman Jr Family Foundation | 990PF | Pres, Director & Treas | 1 | $0 | $0 | View return |
| 2023 | The Dedman Foundation | 990 | President & Treasurer | 1 | $0 | $0 | View return |
| 2023 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 1 | $0 | $0 | View return |
| 2023 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2023 | Southern Methodist University | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | The Robert H Dedman Jr Family Foundation | 990PF | Pres, Director & Treas | 1 | $0 | $0 | View return |
| 2022 | The Dedman Foundation | 990 | President & Treasurer | 1 | $0 | $0 | View return |
| 2022 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 1 | $0 | $0 | View return |
| 2022 | O'Donnell Foundation | 990PF | Vice-Chairman | 3 | $0 | $0 | View return |
| 2022 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2021 | O'Donnell Foundation | 990PF | Vice-Chairman | 3 | $0 | $0 | View return |
| 2021 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 1 | $0 | $0 | View return |
| 2021 | The Dedman Foundation | 990 | President & Treasurer | 1 | $0 | $0 | View return |
| 2021 | The Robert H Dedman Jr Family Foundation | 990PF | Pres, Director & Treas | 1 | $0 | $0 | View return |
| 2021 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2020 | The Dedman Foundation | 990 | President & Treasurer | 1 | $0 | $0 | View return |
| 2020 | The Robert H Dedman Jr Family Foundation | 990PF | Pres, Director & Treas | 1 | $0 | $0 | View return |
| 2020 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2020 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 1 | $0 | $0 | View return |
| 2020 | Southern Methodist University | 990 | Trustee | - | $0 | $0 | View return |
| 2019 | The Robert H Dedman Jr Family Foundation | 990PF | Pres, Director & Treas | 1 | $0 | $0 | View return |
| 2019 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 1 | $0 | $0 | View return |
| 2019 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2019 | The Dedman Foundation | 990 | President & Treasurer | 1 | $0 | $0 | View return |
| 2019 | Southern Methodist University | 990 | Trustee | - | $0 | $0 | View return |
| 2018 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2018 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 0 | $0 | $0 | View return |
| 2018 | The Robert H Dedman Jr Family Foundation | 990PF | Pres & Treas | 1 | $0 | - | View return |
| 2018 | The Dedman Foundation | 990 | Pres & Treas | 0 | $0 | $0 | View return |
| 2018 | Southern Methodist University | 990 | Trustee | - | $0 | $0 | View return |
| 2017 | The Robert H Dedman Jr Family Foundation | 990PF | Pres & Treas | 1 | $0 | - | View return |
| 2017 | The Dedman Foundation | 990 | Pres & Treas | 0 | $0 | $0 | View return |
| 2017 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 0 | $0 | $0 | View return |
| 2017 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2017 | Southern Methodist University | 990 | Trustee | - | $0 | $0 | View return |
| 2016 | The Dedman Foundation | 990 | Pres & Treas | 0 | $0 | $0 | View return |
| 2016 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2016 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 0 | $0 | $0 | View return |
| 2016 | The Robert H Dedman Jr Family Foundation | 990PF | Pres & Treas | 1 | $0 | - | View return |
| 2016 | Southern Methodist University | 990 | Trustee | - | $0 | $0 | View return |
| 2015 | The Dedman Foundation | 990 | Pres & Treas | 0 | $0 | $0 | View return |
| 2015 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2015 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 0 | $0 | $0 | View return |
| 2015 | The Robert H Dedman Jr Family Foundation | 990PF | Pres & Treas | 0 | $0 | - | View return |
| 2015 | Dallas Medical Resource | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2015 | Southern Methodist University | 990 | Trustee | - | $0 | $0 | View return |
| 2014 | The Dedman Foundation | 990 | Pres/Tres/Chair | 0 | $0 | $0 | View return |
| 2014 | Southwestern Medical Foundation | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2014 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 0 | $0 | $0 | View return |
| 2014 | Dallas Medical Resource | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2014 | Southern Methodist University | 990 | Trustee | - | $0 | $0 | View return |
| 2014 | Hockaday School | 990 | Board Vice-Chair | 3 | $0 | $0 | View return |
| 2013 | The Robert H Dedman Jr Family Foundation | 990PF | Pres & Treas | 0 | $0 | - | View return |
| 2013 | The Dedman Foundation | 990 | Pres/Tres/Chair | 0 | $0 | $0 | View return |
| 2013 | The Robert and Nancy Dedman Foundation | 990 | Pres, Tres, Director | 0 | $0 | $0 | View return |
| 2013 | Southwestern Medical Foundation | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2013 | Southern Methodist University | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Hockaday School | 990 | Board Vice-Chair | 2 | $0 | $0 | View return |
| 2012 | The Robert H Dedman Jr Family Foundation | 990PF | Pres & Treas | 0 | $0 | - | View return |