Cooper Demetres was listed in the Jamaican Quit Rent books for 1754 as the owner of 150 acres of land in St Catherine and 1250 acres of land in Clarendon, total 1400 acres.
Cooper Demetres of Clarendon, Esquire. Estate probated in Jamaica in 1758. Slave-ownership at probate: 212 of whom 101 were listed as male and 111 as female. 0 were listed as boys, girls or children. Total value of estate at probate: £11358.37 Jamaican currency of which £4670 currency was the value of enslaved people. Estate valuation included £0 currency cash, £0 currency debts and £237.33 currency plate.
"A List of landholders in the Island of Jamaica together with the number of acres each person possessed taken from the quit rent books in the year 1754", TNA CO 142/31 transcribed at http://www.jamaicanfamilysearch.com/Samples2/1754lead.htm.
Trevor Burnard, Database of Jamaican inventories, 1674-1784.
William Savage's first wife Jane Cooper Demetres must have been related to Cooper...