Select a year 1898 1916 1917-18 1918-19 1929 1943-1944 2007-2008 This is the story of the 1st Arizona Volunteers, Arizona’s first organized militia. Although relatively effective, they were mustered out in 1866 only a year after being formed in 1865. The exhibit details the short history of the forerunner of today’s Arizona National Guard. Did you know that 100% of Fort Tuthill Military Museum's funding is from donations?