Names
- Australian Joint Copying Project291
- Cumbria Record Office. Robert Baxter. Senior Archivist228
- Brookes, Ivy95
- Special Collections (Manuscripts)62
- Royal Institution of Great Britain58
- Cumpston, Helen47
- Surrey Record Office. Kingston upon Thames18
- Printed Collections15
- Staffordshire Record Office15
- NLA11
- National Library of Australia10
- Stanley, Fiona, Prof.8
- Nottinghamshire Archives Office7
- Slessor, Kenneth, 1901-19716
- Hurley, Frank, 1885-19625
- Special Collections (Maps)5
- British Museum (Natural History)4
- Natural History Museum, London4
- Allan, Barbara, Mrs.3
- Fritz Bennicke Hart3