John Thornton
John is no longer alive.

 Mary (Hamilton) Hambleton
Mary (Hamilton) is no longer alive.

 William Thornton
William was born in 1759 in Tortola, British Virgin Islands.  He died at the age of 69 in 1828.

 Robert Glover Thornton
Robert Glover was born on March 6th, 1761 in St. Croix.