T D Stewart Measures Human Leg Bone in Terry Collection, by Clark, Chip, c. 1981, Smithsonian Archives - History Div, T. Dale Stewart (1901-1997), Curator Emeritus of Physical Anthropology, examines human skeletal remains from the Robert J. Terry Collection, Department of Anthropology, at the Smithsonian Institution National Museum of Natural History, circa 1981. He is using calipers to measure a leg bone..