a. correspondence with Dr. A. R. Chapin regarding William F. “Buffalo Bill” Cody in Dakota Territory, 1928.
b. correspondence with the Commissioner of Indian Affairs, 1929.
c. correspondence with A. L. Bloomer regarding his knowledge of Sitting Bull, 1929.
d. correspondence with E. S. Woodruff regarding memories of her father’s role in the history of the West, 1957.
e. correspondence from L. J. Murphy regarding standing guard over Sitting Bull’s body, 1957.
f. news clippings of reviews for Sitting Bull, Champion of the Sioux: A Biography, n.d.
g. general research correspondence, 1953-1957.