Correspondence, 1943, 1968, undated

Artists include: de Neuville, Renoir, Lairesse, Rodin, Greatorex, El Greco, Jouett, Charles Wilson Peale, da Vinci, Velázquez, Fouquet, and Giovanni Benedetto Castiglione.

Dealers include: Margaret D. Coe, Dalzell Hatfield, Alice Louise Geer, Marcel M. House, Aino Rissanen, Fernando Juárez Frías, C.G. Hoffman, Thomson Whitney Webb, Elizabeth Bell Burdick, Rena T. Magee, Francesco Savorgnan di Brazzá, Maude Craig, Stephan Bourgeois, and Arne L. Lehto.