Research Notes:
See Mayflower Families in Progress: Richard Warren, Robert S. Wakefield & Janice A. Beebe, 4th edition, 1999.
The Great Migration reports [1]:
On 19 November 1645 Nathaniel Warren, son of Richard Warren, married at Plymouth Sarah Walker [ PCR 2:94]. On 7 June 1653 "Mrs. Jane Collyare in behalf of her grandchild the wife of the said Nathaniel Warren" petitioned Plymouth Court in a land dispute [ MD 3:141]. John Insley Coddington has suggested that when William Collier married her, Jane Clark was a widow, and that by her Clark husband she had a daughter who married a Walker [ TAG 51:92-93]. Coddington further suggests that the Sara, daughter of William Walker, who was baptized at St. Olave's, Southwark, on 10 November 1622 was the grandchild of Jane Collier who married Nathaniel Warren. If this solution proves to be correct, it would also explain the 1650 land transaction in which William Collier granted to "my kinsman William Clark" [ PCR 12:182].
Nathaniel Warren's home was at Eel River, though he had lands in what was known as Prence's Bottom, now near Summer Street, Plymouth. He also owned or had rights to land in the Namasket or Middleborough purchase; Punckateesett on the Seconnett River (now in Rhode Island); and at Agawam and Manomett Ponds. He was a member of the Plymouth militia in 1643; surveyor of highways in 1654; selectman in 1667; and representative to the General Court of Plymouth Colony 1657-1660 and 1663-1665. [2]
[1] Robert Charles Anderson, The Great Migration Begins: Immigrants to New England, 1620-1633 (Boston, Massachusetts: New England Historic Genealogical Society, 1995), 448, [AmericanAncestors].
[2] http://babbage.clarku.edu/~djoyce/gen/.