Colonel Mark Siebenaller TD VR FRGS
Trustee
| Charity | Role | Appointed |
|---|---|---|
| Army Rifle Association | Trustee | Sept. 15, 2022 |
| South East Reserves And Cadets Welfare Fund | Trustee | Nov. 14, 2024 |
| South East Reserves' And Cadets' Welfare Trust | Trustee | May 21, 2026 |
| The Ulysses Trust | Trustee | Sept. 30, 2024 |