The enrollees who arrived at the Jefferson CCC camp when it opened in June 1933 were World War I veterans.
Until September 1935, 389 (V) Co. served the "Bonus Army," named for veterans who had been pleading with President Franklin Roosevelt and his predecessors for bonuses due them from World War I service.
The Jefferson camp was one of four Bonus Camps in Maine. One at Beddington also lasted until 1935. The other two, at Kokadjo and Seboomook operated for a few months in 1933.