Ronnie Gilbert had a long and colorful career as a singer, actor, playwright, therapist, and independent woman. Her lifelong work for political and social change was central to her role as a performer. Raised in Depression-era New York City by leftist, working-class, secular Jewish parents, Gilbert is best known as a member of the Weavers, the quartet of the 1950s and '60s that survived the blacklist and helped popularize folk music in America. Her joyous contralto and vibrant stage...