From the KLVX Steamboats on the Colorado Photograph Collection (PH-00156). Written on photo sleeve: "Ehrenburg, Arizona Territory Ruins of old city." "COPY Reproduction from the Original in the Arizona Historical Society" stamp on verso.
From the UNLV Special Collections Photograph Collection on Book Illustrations (PH-00170) -- American West, who came to Dodge City. Handwritten on verso: "Print from: Amer. [American] West, 001 I, no. 4, Fall 1964, folder #50, neg. [negative] no. [number] 74-10-15cn."