Later additions

This subseries consists of material that previous and current curatorial staff have added as pertinent artist information. There is also a small amount of material that Zigrosser compiled but never incorporated into his original Archives of American Art. Most of the latter material consists of photographs of works by Arhtur Flory, Käthe Kollwitz, José Guadalupe Posada, and Diego Rivera, as well as some candid shots of Zigrosser with the artist Wanda Gäg. Also included is a set of index cards that Zigrosser created as a chronological checklist of works by Adolf Dehn.