"Clarence King is a hero of nineteenth-century western history. Brilliant scientist and witty conversationalist, bestselling author and architect of the great surveys that mapped the West after the Civil War, King hid a secret from his Gilded Age cohorts and prominent Newport family: for thirteen years he lived a double life--as the celebrated white Clarence King and as a black Pullman porter and steelworker. Unable to marry the black woman he loved, the fair-haired, blue-eyed King passed as a Negro, revealing his secret to his wife Ada only on his deathbed. Historian Martha Sandweiss is the first writer to uncover the life that King tried so hard to conceal. She reveals the complexity of a man who, while publicly espousing a personal dream of a uniquely American amalgam of white and black, hid his love for his wife and their five biracial children"--Publisher description