Son and heir of Robert Tyler, a Carpenter of the Patuxent who was Justice of " Peace of Calvert County 1670-71. His mother was Joan------widow of ---------Reade. Robert, the son, was appointed 22-4-1696 by His Majesty, William III, peace commissioner for Pr.Geo. Co.MD; member of the Lower House of the General Assembly for Pr. Geo. Co. 15 years from May 1704, elected speaker but declined to serve.