Broad and Nelson
Dallas, TX
American Architects Directories:
Listing in 1962 American Architects Directory
Listing in 1970 American Architects Directory
Thomas Dohoney Broad
Donald Siegfried Nelson
The American Institute of Architects Archives
Architects Roster questionnaire, 1953, contains information about the firm and its key personnel. (Note-large pdf, 14MB)
Alexander Architectural Archive, University of Texas Libraries, The University of Texas
See holdings under Donald Siegfried Nelson