There are two female vocalists named Martha Davis. 1. Martha Davis (December 14, 1917 – April 6, 1960) was an African-American singer and pianist whose musical comedy act, "Martha Davis & Spouse", was popular in the late 1940s and 1950s. Davis was born in Wichita, Kansas, and raised in Chicago, Illinois. By the mid-1930s, she had met and been influenced by Fats Waller, and performed regularly as a singer and pianist in Chicago clubs. In 1939