^American Institute of Architects and Engineers, The Sun (1837-1985); Nov 15, 1875; ProQuest Historical Newspapers The Baltimore Sun (1837-1985)
^Changes In Business Firms, The Sun (1837-1985); Jan 3, 1871; ProQuest Historical Newspapers The Baltimore Sun (1837-1985) pg. 4
^The Obituary Record: Charles L. Carson The Well Known Architect, The Sun (1837-1985); Dec 19, 1891; ProQuest Historical Newspapers The Baltimore Sun (1837-1985) pg. 8
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