R&B Singer. She was a member of the 1960s all-girl musical group "The Marvelettes". The group formed in Inkster, Michigan, in 1960, and at times featured Gladys Horton, Wanda Young, Katharine Anderson, Anne Bogan, and Juanita Cowart. The group recorded on the Motown Record Label and the Tamla Record Label, while recording songs written by the likes of Smokey Robinson. In 1961 the group had there first hit with the release of, "Please, Mr. Postman," and a somewhat chart-topping hit in 1965 with the release of, "I'll Keep Holding On." The group continued to record music but broke up in the early 1970s. Tillman passed away at the age of 36 from the effects of lupus or sickle cell anemia.