THE SCULPTOR WHO CARVED THE FACES OF AMERICA'S HEROIC DEAD ON GRANITE MOUNTAINS—AND THEY WERE SELDOM BIG ENOUGH. First published in 1952, Robert John Casey co-wrote this fascinating biography with the wife of Gutzon Borglum (1867-1941), the American sculptor best known for his colossal sculpture of the faces of four U.S. presidents on Mount Rushmore in South Dakota. The son of Danish immigran…