Peggy Gilbert (1915-2010) was an influential American musician, bandleader, and educator, known for her contributions to jazz and big band music. Born in St. Louis, Missouri, she began her musical career in the 1930s and became a prominent figure in the male-dominated jazz scene. Gilbert was notable for leading one of the first all-female big bands, the "Peggy Gilbert and Her All-Girl Band," which gained recognition during World War II when many male musicians were enlisted. Her band performed extensively across the United States, showcasing talented female musicians and challenging societal norms regarding women in music. Notable works include her recordings from the 1940s and performances at various military and civic events, which helped to elevate the status of female musicians in jazz. Gilbert's impact on music extends beyond her performances; she was a mentor to many young female musicians and advocated for their inclusion in the industry. Through her work, she opened doors for future generations and contributed to the gradual acceptance of women in jazz and big band music. Her legacy continues to inspire discussions about gender equality in the music world.