[2] He moved to a colony in South Carolina where he served as justice of the peace and surveyor while managing his own plantation on the Broad River.
[2] During the American Revolutionary War, he fought on the side of the British and served as a major and later lieutenant-colonel in the Loyalist militia.
[1] He served as speaker from 1790 to 1794, when he resigned his seat after being named to the Legislative Council of Prince Edward Island.
In 1796, he published the pamphlet To the farmers in the Island of St. John, in the Gulf of St. Lawrence, which raised the issue of absentee landlords who failed to pay their quit rents.
[1] Colonel Robinson and then Lieutenant-Governor Edmund Fanning were both Loyalists with high social status, wealth, and slaves.
[3][4] In a 19 July 1800 document, Robinson clarified that the promise of potential freedom from slavery offered to Jack and Amelia, did not apply to their children.