Another strong poosibility is this Indiana officer is actually William Terrill Reeves(born 1821 Indiana), son of John Reeves which would make him Col Timothy Reeves nephew, not brother. This William died 20 JAN 1908 in McCurtian Co., OK
and was married to Martha Glen in 1846 / 47 in Missouri.
Afraid we'll need the CMSRs...
John R