In Souvenir of Fargo, North Dakota, published in 1905, Thorn Brothers is listed as one of the photographers for the publication. An advertisement in the booklet states C.E. Hipple managed the studio located at 710 Front Street.
According to the 1906-1907 Polk Business Gazetteer, Frederick A. Thorne is listed as a photographer at 710 1/2 Front Street. No other names are listed. Whether Thorne is part of the Thorn Brothers is not known.