From Missouri State Archives
Soldiers' Records: War of 1812 - World War I

SIMPSON, J. A. Civil War 16th Missouri I view details
SIMPSON, J. A. Civil War 16th Regiment Parson's Brigade I view details
SIMPSON, J. A. Civil War 2nd Missouri Volunteers Infantry D view details
SIMPSON, J. A. Civil War 2nd Regiment Infantry Volunteers CSA D view details

Jack