Published Biographical References

• Koyl, George. American Architects' Directory. New York: R.R. Bowker Co., 1962
  Links: View citation information
  Office: Radnor, Newtown Square
   
• Koyl, George. American Architects' Directory. New York: R.R. Bowker Co., 1970
  Links: View citation information
  Office: Radnor, Newtown Square
   

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