Cain, Walker O. "Page No. 003 - Charles F. McKim and Wm. R. Mead. McKim seated on bench, Mead standing behind to L. (verso)." Photograph. circa 1876-1909. Columbia Digital Library Collections [Columbia University Libraries]. Accessed 04 Dec 2022. https://doi.org/10.7916/d8-n0cb-zm31