Robert M. Sensintaffar was an electrical engineer for the U.S. Bureau of Reclamation between the 1930s and 1970s. Born in Linn County, Missouri in 1910 and educated at the University of Colorado-Boulder, Sensintaffar joined the U.S. Bureau of Reclamation as an Assistant Electrical Engineer at the agency's Denver Office in 1933. He proceeded to rise through the ranks, serving as an Electrical Engineer at the U.S. Bureau of Reclamation's offices in Casper and Guernsey, Wyoming (1940-1944) and in Denver, Colorado (1944-1947). From 1947 to 1958, Sensintaffar served as Assistant Superintendant at the Bureau of Reclamation's Casper Office, where he was in charge of operation and maintenance of the agency's hydroelectric facilities in the North Platte and Bighorn River Subbasins. From 1958 to the early 1970s, he served as Project Manager of the North Platte River Project in Casper.
From the guide to the R.M. Sensintaffar papers, 1898-1972, (University of Wyoming. American Heritage Center.)