Edward Albee and Oliver La Farge both won this award, one for a novel and one for a play?
Edward Albee Edward Franklin Albee III ( ; March 12, 1928 – September 16, 2016) was an American playwright known for works such as "The Zoo Story" (1958), "The Sandbox" (1959), "Who's Afraid of Virginia Woolf?" (1962), and "A Delicate Balance" (1966). Three of his plays won the Pulitzer Prize for Drama, and two of his other works won the Tony Award for Best Play.
Les Chouans Les Chouans (] , "The Chouans") is an 1829 novel by French novelist and playwright Honoré de Balzac (1799–1850) and included in the "Scènes de la vie militaire" section of his novel sequence "La Comédie humaine". Set in the French region of Brittany, the novel combines military history with a love story between the aristocratic Marie de Verneuil and the Chouan royalist Alphonse de Montauran. It takes place during the 1799 post-war uprising in Fougères.