Question: Are Edna St. Vincent Millay and Robert Penn Warren both Pulitzer Prize-winners for their poetry?

Context articles: I, being born a woman and distressed
Renascence (poem)
Norma Millay Ellis
Daniel Mark Epstein
St. Nicholas Magazine
Millay Colony for the Arts
Poetry Society of America
Steepletop
Edna St. Vincent Millay
Robert Penn Warren

"I, being born a woman and distressed" is a poem by American author Edna St. Vincent Millay.
 The poem appeared in Millay's 1923 collection "The Harp-Weaver and Other Poems".
 The first-person speaker of the fourteen-line, Italian sonnet addresses a potential lover.
 She confesses to an intense physical attraction but denies the possibility of any emotional or intellectual connection.
"Renascence" (also "Renasance") is a 1912 poem by Edna St. Vincent Millay, credited with introducing her to the wider world, and often considered one of her finest poems.
Norma Millay Ellis (1894 - May 14, 1986) was an American singer and actress, and sister of the famous poet and playwright Edna St. Vincent Millay.
 Born in Rockland, Maine to Cora Lounella Buzelle and Henry Tolman Millay, Ellis was one of three sisters who were all, due to their parents’ divorcement, largely brought up by their mother.
 Having been a writer of poetry herself, Cora Millay ensured the presence of art and music in the Millay household, which became a vital part of the upbringing of Ellis and her two sisters.
 Ellis would go on to perform with the Provincetown Players and appear on Broadway.
 She married painter and actor Charles Ellis.
Daniel Mark Epstein (born October 25, 1948) is an American poet, dramatist, and biographer.
 His poetry has been noted for its erotic and spiritual lyricism, as well as its power—in several dramatic monologues—in capturing crucial moments of American history.
 While he has continued to publish poetry he is more widely known for his biographies of Nat King Cole, Edna St. Vincent Millay, Bob Dylan and Abraham Lincoln, and his radio plays, "Star of Wonder," and "The Two Menorahs," which have become holiday mainstays on National Public Radio.
St. Nicholas Magazine was a popular monthly American children's magazine, founded by Scribner's in 1873.
 The first editor was Mary Mapes Dodge, who continued her association with the magazine until her death in 1905.
 Dodge published work by the country's best writers, including Louisa May Alcott, Frances Hodgson Burnett, Mark Twain, Laura E. Richards and Joel Chandler Harris.
 Many famous writers were first published in "St. Nicholas League", a department that offered awards and cash prizes to the best work submitted by its juvenile readers.
 Edna St. Vincent Millay, F. Scott Fitzgerald, E. B. White, and Stephen Vincent Benet were all St. Nicholas League winners.
The Millay Colony for the Arts is an arts community offering residency-retreats and workshops in Austerlitz, New York, and free arts programs in local public schools.
 Housed on the former property of feminist/activist poet and playwright Edna St. Vincent Millay, the Colony's campus offers artists, students, and art lovers residencies, retreats, and classes.
The Poetry Society of America is a literary organization founded in 1910 by poets, editors, and artists including Witter Bynner.
 It is the oldest poetry organization in the United States.
 Past members of the society have included such renowned writers as Robert Frost, Langston Hughes, Edna St. Vincent Millay, Marianne Moore, and Wallace Stevens.
 Current members include John Ashbery, Louise Glück, Rita Dove, Stanley Kunitz, Robert Pinsky, Molly Peacock, Billy Collins and James Tate.
Steepletop, also known as the Edna St. Vincent Millay House, was the farmhouse home of Pulitzer Prize-winning poet Edna St. Vincent Millay and her husband Eugene Jan Boissevain, in Austerlitz, New York, United States.
 Her former home and gardens are maintained by the Edna St. Vincent Millay Society.
 It was declared a National Historic Landmark on November 11, 1971.
 The Millay Colony for the Arts, founded in 1973 by Norma Millay Ellis, sister of the poet, is also located at Steepletop.
Edna St. Vincent Millay (February 22, 1892 – October 19, 1950) was an American poet and playwright.
 She received the Pulitzer Prize for Poetry in 1923, the third woman to win the award for poetry, and was also known for her feminist activism.
 She used the pseudonym Nancy Boyd for her prose work.
 The poet Richard Wilbur asserted, "She wrote some of the best sonnets of the century."
Robert Penn Warren (April 24, 1905 – September 15, 1989) was an American poet, novelist, and literary critic and was one of the founders of New Criticism.
 He was also a charter member of the Fellowship of Southern Writers.
 He founded the literary journal "The Southern Review" with Cleanth Brooks in 1935.
 He received the 1947 Pulitzer Prize for the Novel for his novel "All the King's Men" (1946) and the Pulitzer Prize for Poetry in 1958 and 1979.
 He is the only person to have won Pulitzer Prizes for both fiction and poetry.