Jane
Would that be John Himbury born Evershot Dorset, served in Rifle Brigade 1809-1830. Discharged age 40.
Record held by the National Archives, UK, under WO 97/1080/63.
WO 97 Royal Hospital Chelsea: Soldiers Service Documents
1760-1854: discharge papers arranged by regiment, but each described at item level. (WO 97/1-1271)
WO 97/1080 Rifle Brigade: Harr- Hyn
Good hunting.
Ron