| RefNo | Title | Source |
| DF/TM/1/26/22 | Correspondence E: Egan & Co; Ehlers; Elliot | |
| DF/ZOO/230/143 | Bird Section Correspondence: T | |
| DF/ZOO/236/7/1023 | Beecher, Dr W J | |
| DF/MIN/1/61/66 | Chicago Field Museum | |
| DF/ZOO/232/5/14/6/13 | Field Museum of Natural History | |
| DF/ZOO/235/1/1/1/703 | Skiff, F | |
| DF/ZOO/200/174 | Exchange of mammals with the Field Museum of Natural History, Chicago | |
| DF/TM/1/62/15 | Correspondence F: Findin Bros & Kay; Field; Field Columbian Museum | |
| DF/TM/1/34/2 | Correspondence F: Faust; Field Columbian Museum | |
| DF/ZOO/200/54/20 | Chicago Field Museum of Natural History, USA | |
| DF/TM/1/26/4 | Correspondence C: Cherrie | |
| DF/TR/1/1/32/153 | Field Museum of Natural History | |
| DF/ZOO/232/6/14/5/5 | Field Museum | |
| DF/TR/1/1/31/193 | Field Museum of Natural History | |
| DF/ZOO/232/6/11/17/6 | Samborn, Colin Campbell | |
| DF/TM/1/55/21 | Correspondence F: Field | |
| DF/ENT/306/51 | Field Museum of Natural History, Chicago, USA | |
| DF/PAL/100/173/3 | Osgood, W H | |
| DF/ZOO/232/6/8/3/6 | Field Museum of Natural History | |
| DF/MIN/1/38/50 | Chicago Field Museum of Natural History | |
| DF/PAL/100/97/11 | Chicago Natural History Museum | |
| DF/ZOO/235/1/1/1/521 | Meek, Seth Eugene | |
| DF/ZOO/235/1/1/2/131 | Meek, S | |
| DF/ZOO/235/1/1/3/145 | Meek, Seth. Eugene. | |
| DF/ZOO/235/1/1/6/146 | Meek, Seth. Eugene | |
| DF/BOT/400/11/14 | Coulter, J M (Chicago, USA) | |
| DF/BOT/400/15/47 | Correspondence S | |
| DF/PAL/100/109/3 | Denison, Robert H | |
| DF/TM/1/27/1 | Correspondence F: Farrah; Faust; Field Columbian Museum | |
| DF/TR/1/1/30/159 | Field Museum of Natural History | |
| DF/PAL/100/184/21 | Richardson, Eugene S | |
| DF/TR/1/1/26/163 | Elliot, [Daniel] [Giraud] | |
| DF/TR/1/1/29/212 | Field Columbian Museum | |
| DF/ZOO/236/4/293 | Correspondence and Subject file: Turdus (i.e. thrushes) | |
| DF/ZOO/232/6/12/30/1 | Simms, S.C | |
| DF/ZOO/232/6/15/5/2 | Field, Henry | |
| DF/ZOO/232/5/17/13/8 | Osgood, W.H. | |
| DF/ZOO/230/122/254 | USA (Illinois): Chicago Natural History Museum, later Field Museum of Natural History, Chicago | |
| DF/ZOO/230/122/252 | USA (Illinois): Field Museum of Natural History, Chicago | |
| DF/ZOO/235/1/1/10/70 | Meek, S E | |
| DF/ZOO/232/6/12/9/3 | Field Museum of Natural History | |
| DF/ZOO/232/6/14/11/7 | Osgood, Dr W H | |
| DF/TR/1/1/34/162 | Field Museum of Natural History | |
| DF/ENT/332/3/29 | Museum Memos | |
| DF/ENT/340/20/10 | Schaper - Scholten | |
| DF/ENT/340/25/24 | Weir - Wettstein | |
| DF/ZOO/233/1/1/56 | Correspondence Me | |
| DF/BOT/400/12/17 | Chicago, Field Museum of Natural History (USA) | |
| DF/BOT/400/13/69 | Millspaugh, P F (Chicago, Field Museum, USA) | |
| DF/BOT/400/14/13 | Correspondence Ca - Col | |
| DF/BOT/400/15/22 | Correspondence Sh - Sm | |
| DF/BOT/400/16/27 | Correspondence Sa - Sh | |
| DF/BOT/400/18/30 | Correspondence Me - Mo | |
| DF/ZOO/235/1/1/4/146 | Meek, S. E. | |
| DF/ZOO/235/1/1/5/161 | Meek, Seth. Eugene. | |
| DF/ZOO/235/1/1/7/159 | Meek, Seth Eugene | |
| DF/ZOO/235/1/1/8/145 | Meek, Seth. Eugene | |
| DF/ZOO/232/6/9/5/11 | Field Museum of Natural History | |
| DF/ZOO/232/6/11/5/13 | Field Museum of Natural History | |
| DF/ZOO/232/6/11/13/9 | Osgood, W H | |
| DF/ZOO/232/6/11/19/2 | Simms, S.C | |
| DF/ZOO/232/6/12/23/2 | Osgood, W H | |
| DF/ZOO/232/6/13/12/7 | Osgood, W H | |
| DF/ZOO/230/122/253 | USA (Illinois): Chicago Natural History Museum. formerly Field Museum of Natural History, Chicago | |
| DF/ENT/340/16/10 | Osgood - Oxford | |
| DF/PAL/140/4/6 | Photographs by Kenneth Oakley, 1950-1972 | |
| DF/PAL/140/4/3 | Correspondence of Kenneth Oakley, A-Z, 1968-1971 | |