Letter from S.R. Callaway to to Wyoming Territorial Governor Francis E. Warren, September 24, 1885
Callaway writes: "I am very much obliged to you for your favor of the 21st inst. The labor problem is now one of the most serious with which we have to deal. You have rendered us very material aid in helping us to solve it. I trust we may hereafter have less difficulty than we have been having. I enclose you the latest [illegible] this end of the route."