Cain, Walker O. Page No. 003 - Charles F. McKim and Wm. R. Mead. McKim seated on bench, Mead standing behind to L. (verso). circa 1876-1909. Photograph. [Photographic views of works by McKim, Mead & White : gift of Walker O. Cain], Avery Architectural & Fine Arts Library, Columbia University. Columbia Digital Library Collections. 02 Dec 2022