Correspondence between Geoffrey Marr Vevers and Philadelphia Zoological Garden regarding shipments of animals between their zoos, including Kodiak Bears, Coyotes, Raccoons, Aoudads, Thars, Opposums, Turkey Vultures, Screech Owls, Robins, Purple Grackles, Wood Thrushes, Olive-backed Thrush, Bicknell's Thrush, reptiles and amphibians

Correspondence between Portland Zoological Park and Geoffrey Marr Vevers, and newspaper cuttings, regarding an exchange of reptiles, wallabies and hedgehogs