Question: Who was known for his promotion of inoculation for disease prevention and owned the slave Onesimus?

full_context: Document 1: Wonders of the Invisible World: The Wonders of the Invisible World was a book written by Cotton Mather and published in 1693. It was subtitled, "Observations As well Historical as Theological, upon the Nature, the Number, and the Operations of the Devils". The book defended Mather's role in the witchhunt conducted in Salem, Massachusetts. It espoused the belief that witchcraft was an evil magical power. Mather saw witches as tools of the devil in Satan's battle to "overturn this poor plantation, the Puritan colony", and prosecution of witches as a way to secure God's blessings for the colony.
Document 2: James Derham: James Derham (May 2, 17621802?), also known as James Durham, was the first African American to formally practice medicine in the United States, though he never received an M.D. degree.
Document 3: John Williams (minister): John Williams (10 December 1664 – 12 June 1729) was a New England Puritan minister who became famous for "The Redeemed Captive", his account of his captivity by the Mohawk after the Deerfield Massacre during Queen Anne's War. He was an uncle of the notable pastor and theologian Jonathan Edwards. <br> His first wife Eunice Mather was a niece of Rev Increase Mather and a cousin of Rev. Cotton Mather and was related to Rev. John Cotton.
Document 4: Henry Vane the Younger: Sir Henry Vane (baptised 26 March 1613 – 14 June 1662), son of Henry Vane the Elder (often referred to as Harry Vane to distinguish him from his father), was an English politician, statesman, and colonial governor. He was briefly present in North America, serving one term as the Governor of the Massachusetts Bay Colony, and supported the creation of Roger Williams' Rhode Island Colony and Harvard College. A proponent of religious tolerance, he returned to England in 1637 following the Antinomian controversy that led to the banning of Anne Hutchinson from Massachusetts.
Document 5: Richard Mather: Richard Mather (1596 – 22 April 1669) was a Puritan minister in colonial Boston, Massachusetts. He was father to Increase Mather and grandfather to Cotton Mather, both celebrated Boston divines.
Document 6: Increase Mather: Increase Mather (June 21, 1639 O.S. – August 23, 1723 O.S.) was a major figure in the early history of the Massachusetts Bay Colony and Province of Massachusetts Bay (now the Commonwealth of Massachusetts). He was a Puritan minister who was involved with the government of the colony, the administration of Harvard College, and most notoriously, the Salem witch trials. He was the son of Richard Mather, and the father of Cotton Mather, both influential Puritan ministers.
Document 7: Elizabeth Freeman: Elizabeth Freeman ( 1744December 28, 1829), also known as Bet or MumBet, was the first black slave to file and win a freedom suit in Massachusetts. The Massachusetts Supreme Judicial Court ruling, in Freeman's favor, found slavery to be inconsistent with the 1780 Massachusetts State Constitution. Her suit, "Brom and Bett v. Ashley" (1781), was cited in the Massachusetts Supreme Judicial Court appellate review of Quock Walker's freedom suit. When the court upheld Walker's freedom under the state's constitution, the ruling was considered to have implicitly ended slavery in Massachusetts.
Document 8: Sunday O. Fadulu: Dr. Sunday O. Fadulu is a noted microbiologist and medical researcher most recognized for his work with sickle cell anemia. He holds a patent for the treatment of the disease which claimed the lives of two of his brothers in Nigeria. Fadulu enrolled at Oklahoma Baptist University in 1961, with the encouragement of a Southern Baptist missionary he met. Speaking of his father and the death of his brothers, he has stated, "My father was a man who would never fail. He was so strong," Fadulu said in the chapel service. "The night my brother died, he had my brother in his arms, and I saw his face, and it said that he had failed. I remember the discouragement on his face. I said then that I would find a cure and to do that I would have to go to America." Fadulu's research used an extract of the African "chewing stick," which he discovered, reverses sickling of red blood cells. The extract also provides protection from the disease. Medication for treating sickle cell anemia has been through the first phases of approval through the Federal Food and Drug Administration.
Document 9: Onesimus (Boston slave): Onesimus (late 1600s–1700s) was an African-born man held as a slave by Puritan minister Cotton Mather, who helped mitigate the impact of a smallpox outbreak in Boston by introducing Mather to the principle of inoculation. In a 2016 "Boston Magazine" survey, he was declared one of the "Best Bostonians of All Time".
Document 10: Shadrach Minkins: Shadrach Minkins (c. 1814 – December 13, 1875) was an African-American fugitive slave from Virginia who escaped in 1850 and reached Boston. He is known for being freed from a courtroom in Boston after being captured by United States marshals under the Fugitive Slave Act of 1850. White and black members of the Boston Vigilance Committee freed and hid him, helping him get to Canada via the Underground Railroad. Minkins settled in Montreal, where he raised a family. Two men were prosecuted in Boston for helping free him, but they were acquitted by the jury.
Document 11: September 2, 1692 letter by Cotton Mather: In a letter dated September 2, 1692, Cotton Mather wrote to judge William Stoughton. Among the notable things about this letter is the provenance: it seems to be the last important correspondence from Cotton Mather to surface in modern times, with the holograph manuscript not arriving in the archives for scholars to view, and authenticate, until sometime between 1978 and 1985.
Document 12: Kenneth Silverman: Kenneth Eugene Silverman (February 5, 1936 – July 7, 2017) was an American biographer and educator. He won a Pulitzer Prize and a Bancroft Prize for his 1984 biography of Cotton Mather, "The Life and Times of Cotton Mather". Silverman, who specialized In Colonial American literature, was a professor of English at New York University until his retirement in 2001.
Document 13: Azor Betts: Azor Betts (September 13, 1740 – September 14, 1809) was an English doctor who began his practice in the Province of New York before the American Revolutionary War. His staunch defense of smallpox inoculation and support of the Loyalist cause led to his arrest and eventual departure to Canada.
Document 14: The Interesting Narrative of the Life of Olaudah Equiano: The Interesting Narrative of the Life of Olaudah Equiano
Document 15: Cotton Mather: Cotton Mather, FRS (February 12, 1663 – February 13, 1728; A.B. 1678, Harvard College; A.M. 1681, honorary doctorate 1710, University of Glasgow) was a socially and politically influential New England Puritan minister, prolific author, and pamphleteer. He left a scientific legacy due to his hybridization experiments and his promotion of inoculation for disease prevention, though he is most frequently remembered today for his vigorous support for the Salem witch trials. He was subsequently denied the Presidency of Harvard College which his father, Increase Mather, had held.
ground_truth: Cotton Mather