"Elmer Samuel Riggs (January 23, 1869 \u2013 March 25, 1963) was an American paleontologist known for his work with the Field Museum of Natural History in Chicago, Illinois."@en . . . "1869Z"^^ . . "Elmer Samuel Riggs"@en . "1869-01-23Z"^^ . "1963Z"^^ . . . . . . "Riggs, Elmer S."@en . . . . "American paleontologist" . . "1963-03-25Z"^^ . . . . .