3.1 million enslaved people trafficked to the British colonies

Co-owner with Jno Macmillan of  a voyage by the Robert in 1752 from London to the Sierra Leone estuary and Barbados. Given as Jno Blackon [sic]. However, Melinda Elder shows a John Blackow as well as a John Macmillan, and a ship named the Robert associated with the McMillan family, in her work on the Lancaster slave trade.