Letter from Herbert Friedmann to Mrs. C. B. Ripley, August 28, 1943, Smithsonian Archives - History Div, Letter from Herbert Friedmann, curator of birds at the US National Museum, to Mrs. Constance Baillie Ripley, S. Dillon Ripley's mother, returning a letter and a list that Mrs. Ripley sent to Friedmann and his appreciation for the letter and the list. He also was glad to hear that things seem to be going well with Dillon and that he personally had not heard from Dillon since he left..