Moses Benson (1738 – 6 June 1806) was a successful British West Indies merchant, who became heavily engaged in the Liverpool slave trade.
Benson was the son of John Benson (1684–1766), a salt dealer of Mansriggs, near Ulverston, in Furness.
In the 1760s, Benson became a captain in the West India trade for Abraham Rawlinson, a Lancaster merchant, and acted as Rawlinson’s agent in Jamaica, before commencing trade in the West Indies on his own account.
Having acquired a significant fortune, Benson returned to Liverpool, where in 1775 he entered the slave trade. Between 1775 and his death in 1806, he can be associated with no fewer than 67 slaving ventures.
He bought a large house in Duke Street in Liverpool, which occupied an entire block between Cornwallis Street, Kent Street and St. James’s Street.
In 1797, Benson was appointed to the committee charged with conducting the arrangements for the defence of Liverpool.
In 1802 he built and endowed St. James’s School, in St. James’s Road, for poor children. By 1835, the school was educating nearly 200 boys and about 100 girls.
Benson died on 6 June 1806. In 1807, the trustees of his estate bought an estate at Lutwyche, in Shropshire, which then passed to his heirs.
Benson’s will was a controversial document. It identified his four children as his children or “reputed” children and made no mention of their mother (Judith Powell) whom he never married. According to records in Jamaican archives, Judith Powell was a "free mulatto", indicating she was a child born to one black parent and the other white, or to parents who were both "mulatto" (mixed race). Despite the apparent de facto relationship, Judith accompanied Moses and their children on his return Liverpool and remained there until her death. A bequest of £15,000 to his daughter Mary was revoked in the event that she married a native of Ireland. The complications of administering his estate were such as to lead to a private Act of Parliament some 24 years after his death, in 1830.
Benson had four children who survived him: