An English-born American author, she is known for such novels as Dynasty of Death, Dear and Glorious Physician, and The Captains and the Kings. She published her final novel, Answer As A Man, in 1980.
She started writing at the age of eight and had completed her first novel by the time she was 12. She graduated from the University of Buffalo in 1931.
She received The Grand Prix Chatvain in 1950.
She was married four times. Three of her four husbands had the first name of William; her second husband was Marcus Reback. She had two daughters, Mary and Judith.
Her works of fiction often featured real historical figures like Cardinal Richelieu and Genghis Khan.