A Journal of Arizona History article by Norman L. Rue on the history of the Military Telegraph in Arizona.
Norman L. Rue is also the author of a Univeristy of Arizona 1967 Master of Arts Thesis on the Military Telegraph in Arizona titled Words By Iron Wire.
Source: JSTOR - The Journal of Arizona History , Winter 1971, Vol. 12, No. 4 (Winter 1971), pp. 229-262.