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The American Institute of Architects Archives
Quarterly Bulletin of the American Institute of Architects, April 1908, obituary p. 37; chapter memorial resolution, p. 38. Letter from Cyrus Eidlitz providing information for the obituary (from Incoming Correspondence files).
Avery Library, Drawings and Archives Collection, Columbia University
For more information https://library.columbia.edu/locations/avery/da.html.
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