For miners and price of coal, Callaway to Adams, Aug. 19, 1885, UP, SG2, ser. 1, box 289, f. UPR Emply Rel.
Adams to Callaway, Dec. 4, 18, 1884, UP, PO, OC, vol. 24, NS 15986, ser. 2, r. 21.
S. R. Callaway to Adams, Jan. 10, 1885, UP, SG 2, ser. 1, box 17.
Wolff, Industrializing the Rockies, 88-107.
Buchanan, Labor Agitator, 106-16.
Adams to Callaway, Oct. 10, 1885, UP, PO, OC, vol. 32, ser. 2, r. 28.
Adams to Gen. F. P. Alexander, Sept. 1, 1885, UP, PO, OC, vol. 29, NS 15986, ser. 2, r. 25.