According to the Michigan Municipal League, Harry Lee Scott is the first black female mayor in Michigan. Born in Selma, Alabama, Harry Lee worked in the local foundry for most of her life. When she retired, she ran for mayor and won.
Ms. Scott was elected President of the Village in November 1981. She took office in 1982 and remained Village President until 1987. As a side note she married and becamse Harry Lee Scott Boglin.
Source: Charlotte W. Craig, “Harry Scott : Black, female, mayor”, Detroit Free Press, March 21, 1982, p.A3.