Peter H. Falk

• Who was who in American art, 1564-1975
• Who was who in American art
• Dictionary of Signatures and Monograms of American Artists
• Annie Gooding Sykes
• Annual Exhibition Record of the Pennsylvania Academy of the Fine Arts 1913-1968 (Annual Exhibition Record of the Pennsylvania Academy of the)
• Record of the Carnegie Institute's International Exhibitions
• Rudolf Scheffler
• The annual exhibition record of the Art Institute of Chicago, 1888-1950
• The Annual exhibition record of the National Academy of Design, 1901-1950
• The Annual exhibition record of the Pennsylvania Academy of the Fine Arts
• The photographic art market
• Annual Exhibition Record of the Pennsylvania Academy of the Fine Arts 1876-1913 (Annual Exhibition Record of the Pennsylvania Academy of the)