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Correspondence and research materials relating to his research about William Louis Sonntag, including a taped interview with direct descendants of Sonntag and drafts of Sarnoff's unpublished work on him.
Charles Sarnoff papers, 1973-1974. Archives of American Art, Smithsonian Institution.
Art historian; Great Neck, N.Y. William Louis Sonntag was a landscape painter from Pennsylvania.
Donated 1974 by Charles Sarnoff.
Archives of American Art, Smithsonian Institution, 750 9th St. NW, Washington, D.C. 20001