According to his FindAGrave memorial (which, btw, has a better photo -- and also begins with the letter F), Fred was a private in Company C of the 55th Georgia Infantry during the Civil War.
The Vienna News (Georgia) carried notice of Frederick's death in their 24 February 1904 issue (pg. 4, column 3):
MR. F. F. FLOYD DIES.
Mr. F. F. Floyd, a prominent farmer of near Midway, passed away at his home Monday night. His death was unexpected as he was not thought to be very sick. He had been complaining about a week and the sudden change is thought to have been from an attack of heart failure.
His death is universally regretted by the citizens of that community.
Frederick F. Floyd rests at Mount Olive Cemetery in Dooly County, Georgia.
[If you're wondering what's up with all the "letter" posts: I am attempting to follow the Blogging from A to Z Challenge (links to official page). This challenge lasts through the month of April, with Sundays off. Click here to see all my letter posts on one page (in reverse order). Oh, and wish me luck!]