Following the founding of the American Legion in 1919, veterans in Bryan organized a local post with support from thirty-three Brazos County World War I veterans who called for countywide registration booths for honorably discharged former servicemen and women. At an organizational meeting held on January 30, 1920, at Bryan's Carnegie Library, about 150 ex-servicemen named the post for Bryan First Lieutenant Cyrus Earle Graham, who died in an airplane accident near Issoudun, France, on Nov. 9, 1918. The Texas State Executive Committee approved the post's constitution and bylaws on February 11, 1920. In 1928, American Legion Auxiliary Unit 159 formed to work with veterans and their families in rehabilitation, child welfare, and assistance at veterans hospitals. Construction of a permanent headquarters began in 1931 with a frame clubhouse, later replaced in 1954 by the current legion hall. Since its beginning, Post 159 has served veterans and Brazos County through participation in the annual Brazos County Fair, fundraising for servicemen at home and abroad, care packages for active-duty troops overseas, and youth programs including Boy Scouts, Junior Shooting Sports Program, Boys State, Girls State, oratorical competitions, and school awards.