Question: Tom Winslow was the student of what blues and gospel singer known for his fingerpicking guitar style?

full_context: Document 1: Clarence Ashley: Clarence "Tom" Ashley (September 29, 1895 – June 2, 1967) was an American musician and singer, who played the clawhammer banjo and the guitar. He began performing at medicine shows in the Southern Appalachian region as early as 1911, and gained initial fame during the late 1920s as both a solo recording artist and as a member of various string bands. After his "rediscovery" during the folk revival of the 1960s, Ashley spent the last years of his life playing at folk music concerts, including appearances at Carnegie Hall in New York and at the Newport Folk Festival in Rhode Island.
Document 2: Tom Rapp: Thomas Dale "Tom" Rapp (born March 8, 1947) is an American singer and songwriter, best known as the leader of Pearls Before Swine, the psychedelic folk rock group of the 1960s and 1970s. More recently he has practiced as a lawyer.
Document 3: Johnny Joyce: John Joyce (1933–2004) was a legend on the British folk music scene. He dedicated his musical career to the twelve-string guitar. "Blues" was his first love and he appeared with such Blues greats as Howlin' Wolf, Jesse Fuller, Reverend Gary Davis, Sonny Terry, and Brownie McGhee. Throughout his long career he has also played/appeared with The Levee Breakers, Davy Graham, Bert Jansch, John Renbourn, Paul Simon, Roy Harper, Al Stewart, Sandy Denny, Strawbs, Velvet Opera, Ralph McTell, and Paul Brett. He was also highly regarded as one of the best guitar repairers in the United Kingdom. He designed the 'JJ' series and the best selling 'Sandpiper' range of guitars made by Aria.
Document 4: John Fahey (musician): John Aloysius Fahey (February 28, 1939 – February 22, 2001) was an American fingerstyle guitarist and composer who played the steel-string acoustic guitar as a solo instrument. His style has been greatly influential and has been described as the foundation of American Primitive Guitar, a term borrowed from painting and referring mainly to the self-taught nature of the music and its minimalist style. Fahey borrowed from the folk and blues traditions in American roots music, having compiled many forgotten early recordings in these genres. He would later incorporate classical, Portuguese, Brazilian, and Indian music into his œuvre. He spent many of his later years in poverty and poor health, but enjoyed a minor career resurgence with a turn towards the more explicitly avant-garde, and created a series of abstract paintings during the last years of his life. He died in 2001 from complications from heart surgery. In 2003, he was ranked 35th in the "Rolling Stone" "The 100 Greatest Guitarists of All Time" list.
Document 5: Tom Winslow: Thomas Griffin "Tom" Winslow (November 13, 1940, Hobgood, North Carolina – October 23, 2010, Albany, New York) was a prominent American folk singer and writer, best known as a "disciple" of Reverend Gary Davis and a former member of Pete Seeger's band. He performed with his family as The Winslows and recorded with Al Polito. His career as a performing artist lasted over forty years. He was most notable as the composer of "Hey Looka Yonder (It's The Clear Water)", a folk song that has been the anthem of the "Sloop Clearwater".
Document 6: Tom Paxton: Thomas Richard Paxton (born October 31, 1937) is an American folk singer-songwriter who has had a music career spanning more than fifty years. In 2009, Paxton received a Grammy Lifetime Achievement Award. He is noteworthy as a music educator as well as an advocate for folk singers to combine traditional songs with new compositions.
Document 7: Dock Boggs: Moran Lee "Dock" Boggs (February 7, 1898 – February 7, 1971) was an influential old-time singer, songwriter and banjo player. His style of banjo playing, as well as his singing, is considered a unique combination of Appalachian folk music and African-American blues. Contemporary folk musicians and performers consider him a seminal figure, at least in part because of the appearance of two of his recordings from the 1920s, "Sugar Baby" and "Country Blues", on Harry Smith's 1951 collection "Anthology of American Folk Music". Boggs was first recorded in 1927 and again in 1929, although he worked primarily as a coal miner for most of his life. He was "rediscovered" during the folk music revival of the 1960s and spent much of his later life playing at folk music festivals and recording for Folkways Records.
Document 8: Thomasina Winslow: Thomasina Winslow is an American blues musician from the Albany, New York area, and the daughter of folk musician Tom Winslow. As a toddler, she sang back-up on her father's folk music classic "Hey Looka Yonder (It's The Clearwater"); also singing a solo version of "One-Two-Three", another version of which she produced on her own 30 years later. In addition to her solo career, Winslow has been a member of four bands, including a duo with Nick Katzman. Furthermore, she has been a teacher in that genre of music, and has significantly influenced other aspiring musicians. Winslow primarily performs covers of Blues standards and has written a number of blues and gospel tunes in her own right. She is also one of a handful of African-American women producers in the "indy" music industry today.
Document 9: Gospel blues: Gospel blues or holy blues is a form of blues-based gospel music that has been around since the inception of blues music, a combination of blues guitar and evangelistic lyrics. Notable gospel blues performers include Blind Willie Johnson, Sister Rosetta Tharpe, Reverend Gary Davis and Washington Phillips. Blues musicians such as Boyd Rivers, Blind Lemon Jefferson, Charley Patton, Sam Collins, Josh White, Blind Boy Fuller, Blind Willie Mctell, Bukka White, Sleepy John Estes and Skip James have recorded a fair number of Gospel and religious songs, these were often commercially released under a pseudonym.
Document 10: David Bromberg: David Bromberg (born September 19, 1945) is an American multi-instrumentalist, singer, and songwriter. An eclectic artist, Bromberg plays bluegrass, blues, folk, jazz, country and western, and rock and roll. He is known for his quirky, humorous lyrics, and the ability to play rhythm and lead guitar at the same time.
Document 11: Josh Graves: Josh Graves (September 27, 1927 Tellico Plains, Monroe County, Tennessee – September 30, 2006), born Burkett Howard Graves, was an American bluegrass musician. Also known by the nicknames "Buck," and "Uncle Josh," he is credited with introducing the resonator guitar (commonly known under the trade name of Dobro) into bluegrass music shortly after joining Lester Flatt, Earl Scruggs and the Foggy Mountain Boys in 1955. He was inducted into the International Bluegrass Music Hall of Honor in 1977.
Document 12: Reverend Gary Davis: Reverend Gary Davis, also Blind Gary Davis (born Gary D. Davis, April 30, 1896 – May 5, 1972), was a blues and gospel singer who was also proficient on the banjo, guitar and harmonica. His fingerpicking guitar style influenced many other artists. His students include Stefan Grossman, David Bromberg, Steve Katz, Roy Book Binder, Larry Johnson, Nick Katzman, Dave Van Ronk, Rory Block, Ernie Hawkins, Larry Campbell, Bob Weir, Woody Mann, and Tom Winslow. He influenced Bob Dylan, the Grateful Dead, Wizz Jones, Jorma Kaukonen, Keb' Mo', Ollabelle, Resurrection Band, and John Sebastian (of the Lovin' Spoonful).
Document 13: Tom Waits: Thomas Alan "Tom" Waits (born December 7, 1949) is an American singer-songwriter, composer, and actor.
Document 14: G. B. Grayson: Gilliam Banmon Grayson (November 11, 1887 – August 16, 1930) was an American Old-time fiddle player and singer. Mostly blind from infancy, Grayson is chiefly remembered for a series of sides recorded with guitarist Henry Whitter between 1927 and 1930 that would later influence numerous country, bluegrass, and rock musicians. Grayson wrote much of his own material, but was also instrumental in adapting several traditional Appalachian ballads to fiddle and guitar formats. His music has been recorded or performed by musicians such as Bob Dylan, Doc Watson, Mick Jagger, the Kingston Trio, and dozens of bluegrass artists, including the Stanley Brothers and Mac Wiseman.
Document 15: Tony Saletan: Anthony D. "Tony" Saletan is an American folk singer and educator, who is responsible for the modern rediscovery of two of the genre's best-known songs, "Michael Row the Boat Ashore" and "Kumbaya." Born and raised in New York City, he attended the Walden School and received his bachelor's and master's degrees from Harvard University. For a brief period during his childhood, Saletan's piano teacher was a young Leonard Bernstein. He was involved as a teen in the Henry Wallace presidential campaign of 1948, in which original music in the folk style was important. Saletan settled in the Boston area, where for several years he appeared on educational television (WGBH), taught music in the Newton, Massachusetts public schools and gave private guitar lessons. He also became involved in folk dancing and calling of contra dances. Saletan has often taught at Pinewoods Camp, in Plymouth, Massachusetts. Later in life, Saletan moved to Tacoma, Washington.
ground_truth: Reverend Gary Davis