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The American Institute of Architects Archives
Membership file contains membership application, correspondence re emeritus (retired) status, notification of death, Baldwin Memorial form.
Northwest Architectural Archives, University of Minnesota Libraries, Minneapolis
Cone and Peterson papers (N 84)
Collection includes original drawings, photographs, correspondence and business records for various structures, mostly churches, designed by the architectural firm of Cone and Peterson.
For more information https://www.lib.umn.edu/naa
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