Alex Ross (1851–1894) came to Calgary, Alberta in 1884 and set up a photographic studio at the corner of Atlantic Avenue and Osler Street. He had previously worked for a photographer in Winnipeg, but felt the time was right to strike out on his own and establish his own business.
He quickly became well-known for his photographs of the First Nations people in the Calgary area, especially the Tsuu T’ina (called Sarcee at that time) and the Blackfoot. Some of the photographs were taken outdoors, but many more were carefully-posed studio shots. By 1891 the studio seems to have closed, and three years later Ross died at the relatively young age of 43.