Samuel Calvin Dickerhoff, Jr. (November 19, 1894 - September 5, 1974) was an American businessman and research engineer. Born in Williamsport, Maryland to Samuel C. and Emma Richter Dickerhoff, he attended Purdue University and was a member of the Sigma Alpha Epsilon Fraternity. He was affiliated with the Bethlehem Steel Corporation and then started the Automatic Nut Company in 1939. He operated this enterprise until 1962, when he sold it to Bethlehem Steel. As a research engineer, he developed and published a Steel Chart showing the operations of producing steel. He also created and published charts on the history of World War I and World War II. He married Catherine Cushwa, who survived him.