August 25, 1880 C.F. Blacklidge: photographer card C.F. Blacklidge Crested Butte, Colorado 1880 photographer card from HACB
August 25, 1880 Swan Brothers: photographer card Swan Brothers Irwin, Colorado 1880 photographer card from HACB
August 25, 1880 Swan Brothers photograph: Irwin house Swan Brothers Irwin, Colorado 1880 photograph of a house under construction at Irwin from HACB