- Withey, Biographical Dictionary, 544.
- Bentley Historical Library, 01 August 2002, University of Michigan, 11 July 2006.
- The Inn on Ferry Street, 12 July 2006.
- Emporis Buildings, 12 July 2006.
- Withey, Biographical Dictionary, 544.
- Eckert, Sandstone Architecture, 150.
- Portage Lake Mining Gazette, 15 August 1889, cited in Eckert, Sandstone Architecture, 150.
- "Houghton National Bank," National Register of Historic Places Registration Form (U.S. Department of Inteiorr, National Park Service, 1987).
- The Daily Mining Gazette, 1 October 1984.
- Historic Houghton Virtual Tour, 6 June 2004, City of Houghton, 12 July 2006.
- Eckert, Sandstone Architecture, 144.
- Physics Alumni – History – Exhibits, 12 July 2006, Michigan Technological University Physics Department, 12 July 2006.
- Eckert, Sandstone Architecture, 149.
- Halkola, Michigan Tech Centennial, 34.
- Daily Mining Gazette, 3 November 1913.
- Eckert, Sandstone Architecture, 149.
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