| 2023 | The Howard Hallam Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2023 | Fort Worth Art Association | 990 | Director | 0.1 | $0 | $0 | View return |
| 2023 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Howard Hallam Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2022 | The Dallas Opera | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Fort Worth Art Association | 990 | Director | 0.1 | $0 | $0 | View return |
| 2022 | Fort Worth Art Association | 990 | Director | 0.1 | $0 | $0 | View return |
| 2021 | The Howard Hallam Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Fort Worth Art Association | 990 | Director | 0.1 | $0 | $0 | View return |
| 2021 | The Dallas Opera | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | The Howard Hallam Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2020 | Fort Worth Art Association | 990 | Director | 0.1 | $0 | $0 | View return |
| 2020 | The Dallas Opera | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Gaston & Edith Hallam Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | The Howard Hallam Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | Fort Worth Art Association | 990 | Director | 0.25 | $0 | $0 | View return |
| 2019 | The Dallas Opera | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Gaston & Edith Hallam Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | The Howard Hallam Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2018 | Fort Worth Art Association | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Gaston & Edith Hallam Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Dallas Symphony Association | 990 | Life Governor | 1 | $0 | $0 | View return |
| 2018 | The Dallas Opera | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Dallas Symphony Association | 990 | Life Governor | 1 | $0 | $0 | View return |
| 2017 | The Dallas Opera | 990 | Trustee | 0 | $0 | $0 | View return |
| 2017 | Gaston & Edith Hallam Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Fort Worth Art Association | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Dallas Symphony Foundation | 990 | Board Member-Vice President | 0 | $0 | $0 | View return |
| 2017 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Dallas Symphony Association | 990 | Life Governor | 1 | $0 | $0 | View return |
| 2016 | The Dallas Opera | 990 | Trustee | 0 | $0 | $0 | View return |
| 2016 | Fort Worth Art Association | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The Dallas Opera | 990 | Trustee | 0 | $0 | $0 | View return |
| 2016 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Gaston & Edith Hallam Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | Dallas Symphony Foundation | 990 | Board Member-Vice President | 0 | $0 | $0 | View return |
| 2015 | Dallas Symphony Foundation | 990 | Board Member-Vice President | 1 | $0 | $0 | View return |
| 2015 | Gaston & Edith Hallam Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | Dallas Symphony Association | 990 | Life Governor | 1 | $0 | $0 | View return |
| 2015 | Fort Worth Art Association | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Dallas Center for the Performing Arts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Dallas Symphony Association | 990 | Life Governor | 1 | $0 | $0 | View return |
| 2014 | Fort Worth Art Association | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Dallas Symphony Foundation | 990 | Board Member-Vice President | 1 | $0 | $0 | View return |
| 2014 | Dallas Center for the Performing Arts Foundation | 990 | Past Chair | 1 | $0 | $0 | View return |
| 2013 | Dallas Center for the Performing Arts Foundation | 990 | Past Chair | 1 | $0 | $0 | View return |
| 2013 | The Dallas Opera | 990 | Trustee | 0 | $0 | $0 | View return |
| 2013 | Dallas Symphony Association | 990 | Life Governor | 1 | $0 | - | View return |
| 2013 | Dallas Symphony Foundation | 990 | Board Member-Vice President | 1 | $0 | $0 | View return |
| 2013 | Fort Worth Art Association | 990 | Director | 1 | $0 | $0 | View return |