Over 400 works of art by Frederic Remington (1861–1909) and Charles M. Russell (1864–1926) form the ACMAA's core collection of art of the Old West. These holdings include drawings, illustrated letters, prints, oil paintings, sculptures, and watercolors produced by Remington and Russell during their lifetimes. More than sixty of the works by Remington and more than 250 of the works by Russell were purchased by the museum’s namesake, Amon G. Carter, Sr., over a twenty-year span beginning in 1935. Additions to Amon Carter’s original holdings by museum curators have resulted in a collection that contains multiple examples of Remington's and Russell's best work at every stage of their respective careers.