Washington D.C. in "There Was a Queen" (Location)

Although the robbery of Colonel Sartoris' bank took place in 1919 and the F.B.I. did not investigate bank robberies until the 1930s, the "Federal agent" who has possession of the letters Narcissa received must work for the F.B.I. Headquartered in Washington, D.C., the agency itself has existed since 1908.