A good source for this family is "Genealogies of VA Families, Vol II, Concerning the Origin of the Cockes of Henrico," by James C Southall.

Richard Cocke, who settled at Bremo in 1639 or earlier became an influential man in that neighborhood and was County Commandant or Lieutenant-Colonel of Henrico. He was a member of the Grand Assembly or House of Burgesses from Weyanoake and in 1644 and 1654 for Henrico Co, and he was sheriff in 1655. In the year 1655, having been appointed sheriff, he resigned his seat in the House of Burgesses.

As Richard Cocke's eldest son was not born until 1638, it may be reasonably inferred that he did not marry until after he came to Virginia, but we do not know who was his first wife. Probably about 1646 he married his second wife, Mary Aston. She was the daughter of Lt Col Walter Aston of Charles City Co, who came to VA from Staffordshire in 1628 and was a prominent personage in the colony until his death in 1656.