Buell was a popular Presbyterian minister during the second half of the 18th century in Long Island, as well as a close friend of Samson Occom. He was ordained in November 1743, and was a popular itinerant minister before settling at Easthampton. He preached at Occom's ordination, published the sermon in 1761 to raise funds for Occom (he also wrote the letter addressed to Bostwick prefacing his publication), and stayed in close contact with Occom even after Occom's public break from Wheelock. Occom's diary is full of references to visiting Buell and to their close friendship. During the Revolution, Buell was the only minister on Long Island for 40 miles, and was very active in assisting the American cause. He also founded Clinton Academy on Long Island in 1785, which was the first private school chartered by the New York Board of Regents. This academy was also remarkable in that it admitted women. Multiple historical sources have misconstrued Samuel Buell as Sol or Solomon Buell, likely because Buell sometimes signed his name Sa.l, a creative abbreviation of Samuel. However, there was no Reverend Solomon Buell in Easthampton, or, it seems, Long Island, in the second half of the 18th century: Samuel had no brothers, and were there to be two Reverend S. Buell's within 10 miles of one another during the same period, related or not, doubtlessly someone would have commented on it. In addition, the handwriting in letters ascribed to "Sol" and those assigned to Samuel is identical. Lastly, the only source besides collection manuscript 765530.3 describing a "Solomon Buell" is an anthology of letters from the Revolution, which contain letters from a Rev. Sol. Buell, or S. Buell, about aiding the American cause. These letters correspond well with descriptions of Samuel's life in an 1809 biography of his life, and, as he was the only Reverend but one for 40 miles during the Revolution, it is likely that these letters belong to him.

Samson Occom was a Mohegan leader and ordained Presbyterian minister. Occom began his public career in 1742, when he was chosen as a tribal counselor to Ben Uncas II. The following year, he sought out Eleazar Wheelock, a young Anglo-American minister in Lebanon, CT, in hopes of obtaining some education and becoming a teacher at Mohegan. Wheelock agreed to take on Occom as a student, and though Occom had anticipated staying for a few weeks or months, he remained with Wheelock for four years. Occom’s academic success inspired Wheelock to open Moor’s Indian Charity School in 1754, a project which gave him the financial and political capital to establish Dartmouth College in 1769. After his time with Wheelock, Occom embarked on a 12-year mission to the Montauk of Long Island (1749-1761). He married a Montauk woman, Mary Fowler, and served as both teacher and missionary to the Montauk and nearby Shinnecock, although he was grievously underpaid for his services. Occom conducted two brief missions to the Oneida in 1761 and 1762 before embarking on one of the defining journeys of his career: a fundraising tour of Great Britain that lasted from 1765 to 1768. During this journey, undertaken on behalf of Moor’s Indian Charity School, Occom raised £12,000 (an enormous and unanticpated amount that translates roughly to more than two-million dollars), and won wide acclaim for his preaching and comportment. Upon his return to Mohegan in 1768, Occom discovered that Wheelock had failed to adequately care for his family while he was gone. Additionally, despite the vast sums of money that he had raised, Occom found himself unemployed. Wheelock tried to find Occom a missionary position, but Occom was in poor health and disinclined to leave his family again after seeing the treatment with which they had met while he was in Britain. Occom and Wheelock’s relationship continued to sour as it became apparent to Occom that the money he had labored to raise would be going towards infrastructure at Dartmouth College, Wheelock’s new project, rather than the education of Native Americans. After the dissolution of his relationship with Wheelock, Occom became increasingly focused on the needs of the Mohegan community and increasingly vocal in criticizing Anglo-Americans’ un-Christian treatment of Native Americans. In September of 1772, he delivered his famous “Sermon on the Execution of Moses Paul,” which took Anglo-American spiritual hypocrisy as one of its major themes, and which went into four printings before the end of the year. In 1773, Occom became further disillusioned when the Mason Land Case was decided in favor of the Colony of Connecticut. The details of the Mason Case are complicated, but to summarize: the Colony of Connecticut had gained control of Mohegan land early in the 18th century under very suspect circumstances, and successfully fended off the Mohegan’s 70-year-long legal challenge. The conclusion of the case came as a blow to the Mohegans, and further convinced Occom of Anglo-American corruption. Along with David Fowler (Montauk Tribe), Occom's brother-in-law, and Joseph Johnson (Mohegan), Occom's son-in-law, Occom helped found Brothertown, an Indian tribe formed from the Christian Mohegans, Pequots, Narragansetts, Montauks, Tunxis, and Niantics. They eventually settled in Oneida country in upstate New York. Occom moved there with his family in 1789, spending the remaining years of his life serving as a minster to the Brothertown, Stockbridge, and Mohegan Indians. Harried by corrupt land agents, the Brothertown and Stockbridge groups relocated to the eastern shore of Lake Winnebago, though Occom died in 1792 before he could remove himself and his family there. Occom's writings and legacy have made him one of the best known and most eminent Native Americans of the 18th century and beyond.