Clinton Hart Merriam, American zoologist, ornithologist, and entomologist (b. 1855)

Clinton Hart Merriam (December 5, 1855 – March 19, 1942) was an American zoologist, mammalogist, ornithologist, entomologist, ecologist, ethnographer, geographer, and naturalist. He was commonly known as the 'father of mammalogy', a branch of zoology referring to the study of mammals.