The Boris Mirski Gallery records measure 6.2 linear feet and date from 1936-2000, bulk 1945-1972. They include gallery administrative files; artist files including correspondence, exhibition and loan paperwork as well as photographic documentation of artwork; gallery correspondence; financial materials including outgoing and incoming invoices and sales records; printed materials promoting the gallery and its artists; press materials; and a number of photographs of Boris Mirski at events and with others, as well as photographs of artwork. Artists particularly well represented in the collection include David Aronson, Leonard Baskin, Hyman Bloom, Esther Geller, Rico Lebrun, Michael Mazur, Arthur Polonsky, Ben Shahn, Mitchell Siporin, Barbara Swan, and Karl Zerbe.
The records of the Downtown Gallery date from 1824 to 1974 (bulk 1926-1969) and measure 109.56 linear feet. The records present a comprehensive portrait of a significant commercial gallery that operated as a successful business for more than forty years, representing major contemporary American artists and engendering appreciation for early American folk art. There is an unprocessed addition to this collection dating circa 1970 of a single financial/legal document.