After Secretary of War Floyd resigned on Dec. 29, 1860 (becoming a Confederate), Camp Floyd was renamed Fort Crittenden, after Kentucky's Senator John J Crittenden, who worked to prevent Kentucky's secession from the Union. Camp Floyd/Crittenden was abandoned in July 1861 with the military being called east for the American Civil War. Equipment and buildings were sold, destroyed or transported. All that remain today are the military cemetery and one commissary building. Two months after the army's departure, only 18 families remained in Fairfield.