She later became an instructor and then registrar at Fisk University, and was influential in the social life and the education of the city's African-American community.
She, her husband, a man named Robert White, and an unknown young woman became the first Black teachers in Nashville's public school system; Scott became a principal (and, in addition, practiced medicine from 1891 to 1896).
The family moved to Knoxville, and then back to Nashville; upon their return she enrolled at Fisk to finish her BA degree, which she got in June 1903.
[3] Crosthwaite raised funds for needy soldiers during World War 1, and then became an important early figure in the foundation of the YWCA, also heading the Fisk chapter.
She was active in other local African-American organizations as well and became friends with people like Nettie Napier and Juno Frankie Pierce.