I was four years old when I visited the 1939-40 Exposition. All I remember is riding the Elephant Train. My aunt and uncle, Bartlett Brown and Velma Talley Brown were dancers in the Cavalcade of the West show. I'm looking for copies or downloads of any photos or memorabilia from that show. I'm especially interested in something, such as a program, that would indicate their participation. Thank you for your help.