Ancestry and childhood
Both of Hughes' paternal great-grandmothers were African-American and both of his paternal great-grandfathers were white slave owners of Kentucky. According to Hughes, one of these men was Sam Clay, a Scottish-American whiskey distiller of Henry County and supposedly a relative of Henry Clay, and the other was Silas Cushenberry a Jewish-American slave trader of Clark County. Hughes's maternal grandmother Mary Patterson was of African-American, French, English and Native American descent. One of the first women to attend Oberlin College, she first married Lewis Sheridan Leary, also of mixed race. Leary subsequently joined John Brown's raid on Harpers Ferry in 1859 and died from his wounds.
In 1869 the widow Mary Patterson Leary married again, into the elite, politically active Langston family. Her second husband was Charles Henry Langston, of African-American, Native American, and Euro-American ancestry. He and his younger brother John Mercer Langston worked for the abolitionist cause and helped lead the Ohio Anti-Slavery Society  in 1858. Charles Langston later moved to Kansas, where he was active as an educator and activist for voting and rights for African Americans. Charles and Mary's daughter Caroline was the mother of Langston Hughes.
Langston Hughes was born in Joplin, Missouri, the second child of school teacher Carrie (Caroline) Mercer Langston and James Nathaniel Hughes (1871–1934). Langston Hughes grew up in a series of Midwestern small towns. Hughes's father left his family and later divorced Carrie, going to Cuba, and then Mexico, seeking to escape the enduring racism in the United States.
After the separation of his parents, while his mother traveled seeking employment, young Langston Hughes was raised mainly by his maternal grandmother, Mary Patterson Langston, in Lawrence, Kansas. Through the black American oral tradition and drawing from the activist experiences of her generation, Mary Langston instilled in her grandson a lasting sense of racial pride. He spent most of his childhood in Lawrence, Kansas. After the death of his grandmother, he went to live with family friends, James and Mary Reed, for two years. In his 1940 autobiography The Big Sea he wrote, "I was unhappy for a long time, and very lonesome, living with my grandmother. Then it was that books began to happen to me, and I began to believe in nothing but books and the wonderful world in books — where if people suffered, they suffered in beautiful language, not in monosyllables, as we did in Kansas."
Later, Hughes lived again with his mother Carrie in Lincoln, Illinois. She had remarried when he was still an adolescent, and eventually they lived in Cleveland, Ohio, where he attended high school.
While in grammar school in Lincoln, Hughes was elected class poet. Hughes stated that in retrospect he thought it was because of the stereotype that African Americans have rhythm.
I was a victim of a stereotype. There were only two of us Negro kids in the whole class and our English teacher was always stressing the importance of rhythm in poetry. Well, everyone knows, except us, that all Negroes have rhythm, so they elected me as class poet.
During high school in Cleveland, he wrote for the school newspaper, edited the yearbook, and began to write his first short stories, poetry, and dramatic plays. His first piece of jazz poetry, "When Sue Wears Red", was written while he was in high school.
Relationship with father
Hughes had a very poor relationship with his father. He lived with his father in Mexico for a brief period in 1919. Upon graduating from high school in June 1920, Hughes returned to Mexico to live with his father, hoping to convince him to support Langston's plan to attend Columbia University. Hughes later said that, prior to arriving in Mexico, "I had been thinking about my father and his strange dislike of his own people. I didn't understand it, because I was a Negro, and I liked Negroes very much." Initially, his father had hoped for Hughes to attend a university abroad, and to study for a career in engineering. On these grounds, he was willing to provide financial assistance to his son but did not support his desire to be a writer. Eventually, Hughes and his father came to a compromise: Hughes would study engineering, so long as he could attend Columbia. His tuition provided; Hughes left his father after more than a year. While at Columbia in 1921, Hughes managed to maintain a B+ grade average. He left in 1922 because of racial prejudice, and his interests revolved more around the neighborhood of Harlem than his studies, though he continued writing poetry.
Hughes worked various odd jobs, before serving a brief tenure as a crewman aboard the S.S. Malone in 1923, spending six months traveling to West Africa and Europe. In Europe, Hughes left the S.S. Malone for a temporary stay in Paris.
During his time in England in the early 1920s, Hughes became part of the black expatriate community. In November 1924, he returned to the U.S. to live with his mother in Washington, D.C. Hughes worked at various odd jobs before gaining a white-collar job in 1925 as a personal assistant to the historian Carter G. Woodson at the Association for the Study of African American Life and History. As the work demands limited his time for writing, Hughes quit the position to work as a busboy at the Wardman Park Hotel. There he encountered the poet Vachel Lindsay, with whom he shared some poems. Impressed with the poems, Lindsay publicized his discovery of a new black poet. By this time, Hughes's earlier work had been published in magazines and was about to be collected into his first book of poetry.
The following year, Hughes enrolled in Lincoln University, a historically black university in Chester County, Pennsylvania. He joined the Omega Psi Phi fraternity. Thurgood Marshall, who later became an Associate Justice of the Supreme Court of the United States, was a classmate of Langston Hughes during his undergraduate studies at Lincoln University.
After Hughes earned a B.A. degree from Lincoln University in 1929, he returned to New York. Except for travels to the Soviet Union and parts of the Caribbean, Hughes lived in Harlem as his primary home for the remainder of his life. During the 1930s, Hughes became a resident of Westfield, New Jersey.
Some academics and biographers today believe that Hughes was homosexual and included homosexual codes in many of his poems, similar in manner to Walt Whitman. Hughes has cited him as an influence on his poetry. Hughes's story, "Blessed Assurance", deals with a father's anger over his son's effeminacy and "queerness".:192:161 The biographer Aldrich argues that, in order to retain the respect and support of black churches and organizations and avoid exacerbating his precarious financial situation, Hughes remained closeted.
Arnold Rampersad, the primary biographer of Hughes, determined that Hughes exhibited a preference for other African-American men in his work and life. However, in his biography Rampersad denies Hughes's homosexuality. Rampersad concludes that Hughes was probably asexual and passive in his sexual relationships. He did, however, show a respect and love for his fellow black man (and woman). Other scholars argue for Hughes's homosexuality: his love of black men is evidenced in a number of reported unpublished poems to an alleged black male lover.
On May 22, 1967, Hughes died from complications after abdominal surgery, related to prostate cancer, at the age of 65. His ashes are interred beneath a floor medallion in the middle of the foyer in the Schomburg Center for Research in Black Culture in Harlem. It is the entrance to an auditorium named for him. The design on the floor is an African cosmogram entitled Rivers. The title is taken from his poem "The Negro Speaks of Rivers". Within the center of the cosmogram is the line: "My soul has grown deep like the rivers".