William A. Mercer responds to an Office of Indian Affairs letter regarding the work of the Industrial Department. Mercer outlines the work done for Reverend G. M. Diffenderfer was done due to a lack of regular work and in no way is meant to compete with local industries.
April 23, 1907
National Archives and Records Administration
RG 75, Entry 91, box 3612, 1907-#40370