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.
Alfred Uhry Alfred Fox Uhry (born December 3, 1936) is an American playwright, screenwriter, and member of the Fellowship of Southern Writers. He has received an Academy Award, Tony Award (2) and the Pulitzer Prize for dramatic writing.