 In 1904, she was appointed Coroner of Grand County, Colorado, during which time she investigated many of the deaths involved in the construction of the Moffat Tunnel railroad.After contracting tuberculosis in 1907, Anderson relocated to Fraser, Colorado, where residents affectionately nicknamed her "Doc Susie"; for 49 years, she was the only physician in Fraser.She tended to a range of patients and medical conditions including childbirth, skiing injuries, and particularly pneumonia during the 1918 flu pandemic.