Robert Bryson was enlisted as a Private on April 25th, 1862 in Captain Smith’s Company (Key West Avengers), 7th Regiment Florida Infantry by Major R. B. Thomas at Tampa, Florida for a period of 3 years or the war. He is reported present; due $50 bounty and clothing money.
He was detailed to serve as the regimental drummer by order of Colonel Robert Bullock on August 25th, 1863.
He is reported as present on all rolls until February 25th, 1864 when he was transferred to the C.S. Navy and assigned to serve in CSS Savannah as a seaman. On April 19th, 1864 he was part of an oystering expedition party and deserted to the Union forces at Fort Pulaski.