Harry H. Sheldon served as Curator of Mammalogy at the Colorado Museum of Natural History (now the Denver Museum of Nature & Science) from 1913 to 1915. Based on his correspondence, Sheldon was a hunter and an avid fieldworker whose efforts helped build the relatively new Museum's collection of mammal specimens. He left Denver in the 1920s and worked for several years at the Santa Barbara Museum of Natural History alongside ornithologist and mammalogist Egmont Z. Rett, also formerly of the Colorado Museum of Natural History.
From the guide to the Harry H. Sheldon Papers, 1913-1915, (Denver Museum of Nature & Science, )