Virginia land patent records indicate two a Thomas Dickason and a Griffith Dickason purchasing land on 22 Jan 1717/1718, and list Thomas Dickason and Joseph Dickason again in 1748 and 1756. Thomas Dickason is listed as a witness to a will in 1719 in the King George Will Book. Barbara Dickason born 1734 Morris NJ married Henry Cooper in 1752. Linda Laird (firstname.lastname@example.org) has Isaac Dickason born in 1776 in VA. I haven't seen any info on when or where the Dickason's may have come from, though.