Francis Humberston Mackenzie of Seaforth (1754-1815) was a Highland proprietor in what has become known as 'The First Phase of Clearance', was governor of Barbados (1801-6) in the sensitive period immediately before the abolition of the British slave trade and was himself a plantation owner in Berbice (Guiana). It is suggested that his concern for his Highland small tenants was paralleled by his ambition in Barbados to make the killing of a slave by a white a capital offence, by his attempts to give free coloureds the right to testify against whites and by his aim to provide good conditions for his own enslaved labourers in Berbice.
On April 1, 1680, Sir Jonathan Atkins, governor of Barbados, sent a box full of statistical data about his island to the Plantation Office at Whitehall. This mass of data, filed away among the Colonial Office papers, constitutes the most comprehensive surviving census of any English colony in the 17th century.
