Sgt.Edward P Fenn was in the Civil War with 14th Independent Battn' OH Light Artillery. (Union) His widow, Lillian J L Fenn filed for pension benefits. You should be able to order the Pension Records from NARA as they usually hold more info than the actual "Military" records. Costs around $20/$30 and takes about 6-8 wks to rec' even when you submit your credit card number with the application. Good luck in your search.