Question: Steel Hammer was based on which African American folk hero who worked as a "steel-driving man"?
Context: John Henry is an African American folk hero.  He is said to have worked as a "steel-driving man"—a man tasked with hammering a steel drill into rock to make holes for explosives to blast the rock in constructing a railroad tunnel.  According to legend, John Henry's prowess as a steel-driver was measured in a race against a steam-powered hammer, a race that he won only to die in victory with hammer in hand as his heart gave out from stress.  The story of John Henry is told in a classic folk song, which exists in many versions, and has been the subject of numerous stories, plays, books, and novels.  Various locations, including Big Bend Tunnel in West Virginia, Lewis Tunnel in Virginia, and Coosa Mountain Tunnel in Alabama, have been suggested as the site of the contest. Odetta Holmes (December 31, 1930 – December 2, 2008), known as Odetta, was an American singer, actress, guitarist, songwriter, and a civil and human rights activist, often referred to as "The Voice of the Civil Rights Movement".  Her musical repertoire consisted largely of American folk music, blues, jazz, and spirituals.  An important figure in the American folk music revival of the 1950s and 1960s, she influenced many of the key figures of the folk-revival of that time, including Bob Dylan, Joan Baez, Mavis Staples, and Janis Joplin. " Time" magazine included her song "Take This Hammer" on its list of the 100 Greatest Popular Songs, stating that "Rosa Parks was her No. 1 fan, and Martin Luther King Jr. called her the queen of American folk music." Febold Feboldson is an American folk hero who was a Swedish American plainsman and cloudbuster from Nebraska.  His exploits were originally published in 1923 in an independent newspaper and the character is now largely considered a part of fakelore as opposed to a genuine folk hero.  ("Febold" is also not a Swedish name.) Antonine Barada (August 22, 1807 – March 30, 1885), alternatively spelled Antoine Barada, was an American folk hero in the state of Nebraska; son of an Omaha mother, he was also called Mo shi-no pazhi in the tribal language.  While Barada was an historic man, contemporary accounts of his prodigious strength helped establish him as a regional legend, in the mold of Paul Bunyan and Febold Feboldson.  Barada's exploits have been counted as fakelore by historians. Pecos Bill: The Greatest Cowboy of All Time is a children's novel by James Cloyd Bowman about the American folk hero Pecos Bill.  Raised by coyotes, the hero has various supernatural powers, including the ability to talk to animals, and becomes a spectacularly successful cowboy.  The novel, illustrated by Laura Bannon, was first published in 1937 and was a Newbery Honor recipient in 1938. The Ethiopian Art Theatre — originally called the Chicago Folk Theatre, later the Colored Folk Theatre, also referred to as The Ethiopian Art Players — was an African American theatre company based out of Chicago, Illinois.  The company was an influential albeit short-lived (1922/1923–1925) group founded during the Harlem Renaissance.  There are differing views over the precise year that the company was founded, 1922 or 1923.  The founder was Raymond O'Neil, a white theatre director, and its principal sponsor was Mrs. Sherwood Anderson, also white; though all its performers were African American.  The organization was unique and controversial during its era, primarily for being one of the few African American Theatre Companies to perform European theatrical works, but also, among other things, for producing theatrical works of African American playwrights for both African American and Non-African American audiences. Davy Crockett is a biography of the American folk hero written for children by Constance Rourke.  It was first published in 1934 and was a Newbery Honor recipient in 1935.  It includes detailed explanations of frontier life and many contemporary folk tales about Crockett, plus a very extensive bibliography. John Henry and the Inky-Poo is a 1946 short animation film written and directed by George Pal using Pal's Puppetoons stop-motion style.  The film is based on African American folk hero John Henry. Steel Hammer is a 2009 composition for three sopranos and chamber ensemble by the American composer Julia Wolfe.  It was first performed on November 21, 2009, at Zankel Hall by the contemporary classical music groups Bang on a Can and Trio Mediæval.  The piece is based on the ballad of the African-American tall tale John Henry.  The composition was a finalist for the 2010 Pulitzer Prize for Music. Kemp Morgan or Gib Morgan (1842-1909) is a character from American folklore, particularly appearing in tall tales.  Kemp Morgan stories are said to have appeared in the oil fields of Texas and Oklahoma, where he was a folk hero similar to Paul Bunyan or John Henry.  Morgan was said to be a rotary oil driller with an amazing power of olfaction, allowing him to smell oil underground.  Morgan is possibly a creation of fakelore, rather than a genuine folk hero.
Answer: John Henry