Which poet has won the Pulitzer Prize for Poetry four times?

Robert Frost (March 26, 1874 – January 29, 1963) was an American poet. His work was initially published in England before it was published in America. Known for his realistic depictions of rural life and his command of American colloquial speech, Frost frequently wrote about settings from rural life in New England in the early twentieth century, using them to examine complex social and philosophical themes.

Frost was honored frequently during his lifetime and is the only poet to receive four Pulitzer Prizes for Poetry. He became one of America's rare "public literary figures, almost an artistic institution." He was awarded the Congressional Gold Medal in 1960 for his poetic works.

Frost spent his first 40 years as an unknown. He exploded on the scene after returning from England at the beginning of World War I. In 1924, he won his first Pulitzer Prize for his volume, 'New Hampshire: A Poem with Notes and Grace Notes'.

During the 1930s he started spending more time in the southern United States, particularly Florida. It was there that he bought a plot of land on which he would spend every winter for the rest of his life. The property was named, Pencil Pines. As the decades progressed his reputation only grew and the prestige with which he was considered, increased. He won his second Pulitzer in 1931 for 'Collected Poems', his third in 1937 for 'Further Range', and finally, his fourth, in 1943 for 'A Witness Tree'.