The Samuel Yellin Collection, containing project files, office records, photographs and drawings, was donated to the Architectural Archives by his granddaughter and successor in the firm, Clare Yellin. The earliest documents in the collection are office ledgers (1912). Project files (1920-1953) include order information, drawing lists, shipping information and correspondence related to nearly 1400 projects. Most of the drawings are for designs by Samuel Yellin, with some by his son and successor Harvey Yellin. The collection does not contain drawings for the final design for each project, which were retained by the firm. Also found in the collection are architectural drawings of numerous architects with whom Yellin worked. The collection contains materials related to many of Yellin's most important projects. Among projects represented in the collection, the following are particularly well represented with drawings: Edward Bok Residences and Carillon Tower; Brick Presbyterian Church; Curtis Institute of Music; Equitable Trust Company Building; McKenzie, Voorhees & Gmelin Office; Arthur E. Newbold, Jr. Residence; University of Chicago, Public Administration Building; Cathedral of Learning, University of Pittsburgh; Samuel Yellin Residence; Federal Reserve Bank of New York; Federal Reserve Board; Washington Cathedral. The collection contains original architectural drawings of the following architects and firms: Frederick L. Ackerman; Harry R. Allen; Appleton & Stearns; Barber & McMurry; Baskerville & Lambert; Dwight James Baum; Baumann & Baumann; Roger H. Bullard; Felix A. Burton; Carrer̀€e & Hastings; Chatten & Hammond; Childs & Smith; Cram & Ferguson; Crombie & Stanton; Delano & Aldrich; Delano & Aldrich and Charles H. Higgins; Marc Eidlitz & Son; Frederick G. Frost; Cass Gilbert; Edward F. Hoffman, Jr.; George Howe; Howell & Thomas; Johnson, Kaufmann & Coate; Jas. MacKenzie, Jr.; Stanley Matthews: Elzner & Anderson; Hunter McDonnell; Mellor, Meigs & Howe; R. Brognard Okie; Ritter & Shay; George Washington Smith; Stearns & Brophy; Thompson, Holmes & Converse; Trowbridge & Ackerman; Voorhees, Gmelin & Walker; Wyeth & King; Zantzinger, Borie & Medary. Blueprints and photostats are also found from these and additional architects. Notable among bluepints are architectural drawings by Sir Edwin Lutyens for the British Embassy in Washington, DC.