mcmahon stadium
- https://www.dead.net/archives/1970/photos/mickey-bobby-calgary
- https://www.dead.net/archives/1970/photos/jerry-billy-calgary
- https://www.dead.net/archives/1970/photos/jerry-billy-phil-calgary
- https://www.dead.net/archives/1970/photos/trans-continental-pop-festival
- https://www.dead.net/archives/1970/clippings/festival-express-advertisement-calgary-herald
- https://www.dead.net/archives/1970/photos/backs-pigpen-mickey-bobby-phil-and-crowd-calgary
