Ives to G. Clark, April 24, 1869, Ives to Brother, Nov. 17, 1867, box 6, f. 3, Ives Papers.
Ives to Brother, July 19, 1868, box 6, f. 3, Ives Papers.
Ives to G. Clark, April 24, 1869, Ives to Brother, Feb. 27, 1869, box 6, f. 3, Ives Papers.
Jno. Valentine to Supts. Union Pacific, Jan. 3, 1872, box 6, f. 3, Ives Papers.
A. N. Towne to Hopkins, Nov. 13, 1876, Towne to Crocker, Nov. 21, 1876, LB, 12:169, box 25, Hopkins Collection.
Hudson, Plains Country Towns, 68-69.