Letters from Alexander Ruthven of the University of Michigan, congratulating Joan Procter on her appointment at the Zoological Society of London
Letter from Karl Schmidt, Assistant Curator of Reptiles and Amphibians at the Field Museum of Natural History, regarding Procter leaving the British Museum and accepting an appointment at the Zoological Society of London
Letters from members of the Sloley family regarding Joan Procter's health and thanking her for presents
Correspondence between Malcolm Arthur Smith and Joan Procter regarding the identification of specimens, papers to be read and Smith's travels in Bangkok
Unidentified letters and postcards sent to Joan Procter
Letter from Sir Francis Patrick Fletcher Vane to Joan Procter regarding the War and nerves
Letters from Franz Werner to Joan Procter regarding specimens of snakes, an exchange of papers, volumes by Mr Boulenger, a gift of newts, a new frog in London Zoo, and Procter's position at the British Museum
Letter from Otto Wettstein to Joan Procter
Letters from Gaston-Francois de Witte to Joan Procter regarding her work at the British Museum and papers recommended by Procter