The collection of William C. Bradbury, Honorary Curator of Oology at the Colorado Museum of Natural History (now the Denver Museum of Nature & Science), consists of correspondence, notes, copies of permits, egg and bird lists, field notes, manuscripts, donation information and images. The first part of the collection, contained in one 12.5 x 15.5 x 10-inch box and three 5 x 15.5x 10-inch boxes, spans dates between 1913 and 1925, the year of Bradbury's death. Handwritten and typewritten letters and copies of letters from 1913 onward document some of Bradbury's earliest contacts with museum officials including Jesse Figgins, the first director. Others deal with Bradbury's efforts to acquire other people's collections of eggs. Later years' letters and documents, dating from when Bradbury was doing work for the museum as a trustee and honorary curator, deal with permits and include communications with government agencies, including the U.S. Forest Service and the U.S. Biological Survey. This portion of the collection also includes numerous bird and egg lists, some of them Bradbury's, others originating with people he worked with. These lists are both handwritten and typewritten. The second part of the collection is contained in 48 file folders in one 12.5 x 15.5 x 10-inch box and includes material dealing more specifically with Bradbury's field work and collections. It includes field notes, data slips, bird notes, book lists, collection inventories, correspondence and various literary manuscripts. The manuscripts deal with specific birds, including Clark's Nutcracker, the White-Tailed Ptarmigan and the Rocky Mountain Jay. This portion of the collection dates from between 1914 and 1922. Bradbury's field notes from 1914 to 1922 are the third part of the collection. These typewritten notes are contained in one three-ring binder, 7 x 9.75 x 1.25 inches. The final part of the collection consists of 30 images taken by Bradbury in 1915 and 1916, both negatives and prints. Most of the images are of Colorado scenery. They include camping and field parties with covered wagons and tents; views of Whale Mountain, waterfalls and beaver dams; several shots of St. Mary's Lake and Glacier and the log-cabin headquarters of a field party doing work there; and an image of the brown-capped rosy finch in its nesting habitat.
