robertmitchell on Family Tree Circles

My Mitchell family line starts with Thomas Mitchell,I of New Kent Co., VA. He was born abt 1635-1645 and died in 1690 in St. Peter's Parish, New Kent County. He was granted by Sir William Berkeley, Governor a large land patent of 1680 acres together with John Lewis on Jan 15, 1682 (See New Kent County, Virginia Patent Book 4, page 84, 1680 acres). By Feb 28, 1682, John Lewis has sold his title to Thomas Mitchell, the planter of New Kent Co. Thomas now has 2436 acres of land that he has been living on. (See New Kent County, Virginia, Patent Book 7, page 232, 2436 acres)
I do not know who his father and mother were or where he was born? Maybe England or Virginia? But, he was very active in New Kent County, serving in St. Peter's Parish Church as Vestryman and Church Warden. His son was Thomas Mitchell, II (JR.)of New Kent Co. who was born abt 1673 and died 6 July 1736 in St. Peter's Parish. He and his wife, Mary Gregory, are buried in St. Peter's Episcopal Cemetery, New Kent County. Thomas "the planter" may be buried there as well, but I have no proof of his burial.
Thomas Mitchell, II and Mary Gregory had a least 4 children all born in St. Peter's Parish, Martha, 22 Sept 1697, Thomas Mitchell, III, 3 Jan 1701, Archelaus, SR., 9 Feb 1703, and Rebecca, abt 1705.
My family line follows Archelaus Mitchell, Sr., Archelaus, Jr., Archelaus, III, Jordan D., John D., Robert D., John William, Robert Alexander Mitchell,SR. to me, Robert Alexander Mitchell,Jr.
Other surnames that I am researching are Alexander, Massey, Gore, Summerfield, Holland, Goodwin, White, etc.
Some day I hope to find the place of birth and parents of my Thomas Mitchell, "The Planter" of New Kent County, Virginia.