Clayton Parkhill (1860-1902) was an American anatomist and surgeon. A native of Denver he graduated from Jefferson Medical College in 1883. After his post graduate work he returned to his native city, where he became demonstrator of anatomy at the University of Denver, and at its organization, demonstrator of anatomy and professor of clinical surgery in Gross Medical College. He was afterwards professor of surgery and dean of the medical department of the State University. Upon the reorganization of the Arapahoe County Hospital, he was appointed visiting surgeon, and here and at St. Luke's, to which he was also attached, he did his great work. It was here that he devised his apparatus for cleft palate, his jury-mast for fractures of the jaw, his apparatus for intestinal anastomosis, his device for supporting the body during operations upon the kidneys, and his bone clamp for un-united fractures. Upon the outbreak of the Spanish war, he went out as major and surgeon of the First Colorado Regiment. He died at the age of 42.