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Alexander Architectural Archive, University of Texas Libraries, The University of Texas
See Karl Fred Kamrath
Stephen Fox Architectural Archives, Houston Metropolitan Research Center, Houston Public Library
MSS 0422 MacKie and Kamrath Papers. For further information about the Houston Metropolitan Research Center, https://aiaorg1735houstonlibrary.sharepoint.com/sites/RecordsChampions/SitePages/ProjectHome.aspxorg/houston-texas