Lydie Marland's Letters to Grace Murray 1926 1945
After his wife died, E.W. Marland, 54, the world's most successful independent oilman during the Roaring Twenties, married their adoptive daughter, Lydie, 26. He built a 55-room mansion in Ponca City and commissioned statues of himself, his adopted son George, and Lydie. The infamy of violating the taboo had little effect on him: he was elected to Congress six years later, then became governor of Oklahoma in 1935. However, Lydie had lifelong emotional problems.