Published Biographical References

• American Art Annual. v.21 (1924/25) "Who's Who In Architecture.", p. 405
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  Office: 1112-1114 Chestnut St., Philadelphia, PA
   
• AIA/T-Square Yearbook, 1931
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  Membership: T-Square Club, Member
   
• AIA/T-Square Yearbook, 1931
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  Membership: Philadelphia Chapter, AIA, Member
   
• Who's Who in Maryland, A Biographical Dictionary of Leading Living Men and Women of the States of Maryland, Pennsylvania, New Jersey, Delaware and West Virginia.. Chicago, Marquis Company, 1939-?, p. 353, 1939
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  Office: 1700 Walnut Street, Philadelphia, PA
   
• AIA/T-Square Yearbook, 1949
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  Membership: Philadelphia Chapter, AIA, Corporate Member
   
• Koyl, George. American Architects' Directory. New York: R.R. Bowker Co., 1956
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  Office: Philadelphia
   
• Koyl, George. American Architects' Directory. New York: R.R. Bowker Co., p. 894, 1962
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• Hahn, Frank E. Modern Buildings, Containing a Series of Photographs of Structures Recently Erected According to Plans and Specifications Prepared by and under the Supervision of Frank E. Hahn. Philadelphia: Baker, 1917.
   
• Hahn, Frank E. Selections form the Work of the Office of Frank E. Hahn, Architect and Engineer. Philadelphia; New York: Architectural Catalog Co., 1930.
   
• Oberholtzer, Ellis P. Philadelphia, A History of the City and Its People. Philadelphia: S.J. Clarke Publishing Co., n.d., v.4, p.363-364.
   

Biographical Drawings, Photos, Papers, etc.

• "Classification of Buildings", American Institute of Architects Archives, Washington, DC (RG803, Box 211)
   
• Membership records, American Institute of Architects Archives, Washington, DC
   
• Student files, University of Pennsylvania Archives, Philadelphia, PA
   

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