I am writing to report on some success with guesswork and flexibility... My distant cousin, Clement Frank Griffin, was born in Massachusetts at a time where he might have served in the Union Army, but nothing in the Army records. So I made a guess that any man named Clement would use his middle name if it was more masculine than his first name. Success! Frank Clement Griffin had enlisted. The Army record showed that he was 18 (even though he was only 16) but the birth month and day and town matched my other records. Frank/Clement joined the cavalry in March 1865 and died of disease in April. The Army record indicated that he was buried in Winchester, VA. but I couldn't find him. The records weren't quite right. Winchester National Cemetery shows FG Griffin buried there in May 1865.