found: P&P data from LOT 12333 for Panoramic and aerial views of Washington, D.C., and vicinity [graphic] c1901-ca. 1932:photo backing, pencilled notation (Leet Brothers)
found: P&P LOT 12503 for Library of Congress Thomas Jefferson and John Adams buildings [graphic] ca. 1900-193-:photo verso, stamp (Leet Bros., Wash., D.C.)
found: Rock Creek Cemetery. Rock Creek Cemetery, Washington, D.C., 193-:map recto (Leet Bros. Photography Wash. D.C.)
notfound: Int'l. Museum of Photog. at George Eastman House. Photog. biog. file [MI] 1988-89.