Michaels was born in
St. Louis,
Missouri, to Alma Weil Michaels (née Weil), a playwright and theatrical producer, and
Ephraim London, a civil rights attorney from
New York City, who never acknowledged Michaels as his daughter. Michaels' mother was at that time separated from her husband, Maurice "Bill" Michaels, a shoe representative for
Edison Brothers Stores in St. Louis. Her mother did not want to live with a young child, so three-year-old Michaels was sent to New York City to live with her maternal grandparents, Irving Weil and Frances (Feigela) Weil (née Sacks), in the Bronx. When she was about eight years old, she was returned to live with her mother and her mother's second husband, a wealthy metallurgist, Harry H. Kessler. She was also given the last name Kessler. Many years later, her mother and Harry Kessler, disapproving of her political activism, disowned her and asked her to stop using the Kessler name. As a result, she changed back to Michaels. In 1957, she graduated from high school in St. Louis. After high school she attended
College of William & Mary but was expelled in part for writing anti-segregationist articles for the student newspaper. After a period of time living in St. Louis working entry-level jobs, Michaels moved to New York City in October 1959. == Career and activism ==