Join us for a presentation on The Impresario: Leon Hefflin and the World’s First Annual Jazz Festival by the author, Deborah Swan. Deborah has dedicated herself to honoring and preserving the legacy of her grandfather, Leon Hefflin Sr. Hefflin was the producer of the long running Cavalcade of Jazz at Wrigley Field in Los Angeles,… Continue reading Deborah Swan and The Impresario: Leon Hefflin and the World’s First Annual Jazz Festival