Awards & Fellowships
Obie Award, Best Play, 1966, The Journey of the Fifth Horse
Emmy Nomination, Outstanding Writing Achievement in Drama, 1966–1967, The Final War of Olly Winter
Straw Hat Award, Best New Play, 1973, The Poison Tree
Dramatist’s Guild’s, Hull- Warriner Award, 1976–1977, Cold Storage
Pulitzer Prize Nomination in Drama, 1978, Cold Storage
Playwrights USA Award, 1984, Buck
Kennedy Center, Fund For New American Plays, 1991, The Rug Merchants of Chaos
Rockefeller Foundation Fellowship, 1966, 1968
Guggenheim Foundation Fellowship, 1970
National Endowment for the Arts Fellowship, 1974, 1986-87
Honored by the Rockefeller Foundation with a Playwright-In-Residence fellowship for sustained contribution to American Theater, 1975