1. Nathaniel Hawthorne: Born on July 4, 1804, he wrote dark, psychologically rich novels and short stories exploring morality, guilt, and human nature. Works like "_The Scarlet Letter_" (1850) and "_The House of the Seven Gables_" (1851) remain American literary landmarks
2. Robert Frost: Lived from March 26, 1874, to January 29, 1963. Frost composed lyric poems renowned for their simplicity, symbolism, and use of colloquial tone and subject matter. He won four Pulitzer Prizes, including one for "_Collected Poems_" (1930).
3. Robert Penn Warren: Born April 24, 1905, and passed away September 15, 1989, Warren created significant body of poetry, nonfiction, literary criticism, and fiction. He penned "_All the King's Men_" (1946), which received a Pulitzer Prize.
4. Robert Olen Butler: Born October 20, 1945, this writer is acclaimed for exploring cultural diversity and immigrant and refugee experiences in literary short stories and novels, like his Pulitzer Prize-winning "_A Good Scent from a Strange Mountain_" (1992).
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Each "Robert" has left an enduring impact on American literature with their distinct styles, narratives, and poetic voices, deepening reader understanding of various human experiences.