Andy Kirk And His Orchestra, including Mary Lou Williams (sitting at the piano), pose for a studio group portrait in 1940. Williams toured with Kirk’s band before settling in New York.

Andy Kirk And His Orchestra, including Mary Lou Williams (sitting at the piano), pose for a studio group portrait in 1940. Williams toured with Kirk's band before settling in New York.

Andy Kirk And His Orchestra, including Mary Lou Williams (sitting at the piano), pose for a studio group portrait in 1940. Williams toured with Kirk’s band before settling in New York.

Andy Kirk And His Orchestra, including Mary Lou Williams (sitting at the piano), pose for a studio group portrait in 1940. Williams toured with Kirk’s band before settling in New York.