Rank- Pvt Date of appointment or enlistment- Jan. 1, 1814 To what time Engaged or Enlisted - Apr.30, 1814
This was a federal unit though the men enlisted in KY. They did not make compiled service records for Federal troops. All you will find is the enlistment info and possibly a discharge paper.
U.S. Army, Register of Enlistments, 1798-1914 Number- 121/2 Name - Spencer, Francis Rank - Pvt Regiment - 28 U.S.I. Enlistment - June 25, 13 Period - 1 year Remarks - MR Capt. Moore's Co. Aug 23, Dec 31/13 & Jany 27/14. So there are 2 enlistment periods for this person.
It doesn't look like he or his family filed for a pension. Watch out for the other Francis Spencer in Ohio. He is in Greene County and about 6 years youngerthan the one in Darke co.