National Portrait Gallery, Smithsonian Institution William Woys Weaver, Devon, Pa.; purchased 2001 NPG Note: NPG catalog form gives: E. Tyson, Jr. [?]; by descent in the family of the sitter's nephew, John Shoemaker Tyson, to a collateral family member; acquired by an unidentified art dealer in Connecticut; purchased through an agent by William Woys Weaver. Sources of information not known