| 2024 | Robert Lee Blaffer Foundation Inc. | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2024 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | Heartland Medical Clinic Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2023 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2023 | Robert Lee Blaffer Foundation Inc. | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2023 | Heartland Medical Clinic Inc. | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2022 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2022 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2022 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2022 | Heartland Medical Clinic Inc. | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2021 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2021 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2021 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2021 | Heartland Medical Clinic Inc. | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2020 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2020 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2020 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2019 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2019 | Loudoun Wildlife Conservancy | 990 | Vice President | 10 | $0 | $0 | View return |
| 2019 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2019 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2019 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2018 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2018 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2018 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2018 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2017 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2017 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2017 | Loudoun Wildlife Conservancy | 990EZ | Director | 10 | $0 | $0 | View return |
| 2017 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2017 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2016 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2016 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2016 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2016 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2015 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2015 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2015 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2015 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2014 | Robert Lee Blaffer Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |
| 2014 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2014 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2014 | New Harmony Artists Guild Inc. | 990EZ | Director | 0 | $0 | - | View return |
| 2014 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2013 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2013 | Robert Lee Blaffer Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2013 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2013 | New Harmony Artists Guild Inc. | 990EZ | Director | 0.5 | $0 | - | View return |
| 2013 | Paul Ross Charitable Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2012 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | - | View return |
| 2012 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2011 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2011 | Robert Lee Blaffer Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2011 | Sarah Campbell Blaffer Foundation | 990PF | Vice Pres./Treasurer | 1 | $0 | $0 | View return |
| 2010 | Wyman Foundation Inc | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2010 | Robert Lee Blaffer Foundation Inc. | 990PF | Director | 0 | $0 | $0 | View return |