The Snow Genealogy in the NEHGS:
Nicholas Snow came in the Ann in 1623, and had share in the division of land in Plymouth, 1624; settled in Eastham in 1645; a man of much note. We find where he lived, and his neighbors, from Plymouth Colony Records.
He was freeman 1633. He with six others — Mr. Thomas Prence, John Doane, Nicholas Snow, Josias Cook, Richard Higgins, John Smally, and Edward Bangs — seven families, in all forty-nine souls, began the settlement of Eastham — at first called Nauset, early in 1645.
He died at Eastham, Nov. 15, 1676. He married in Plymouth, Constance Hopkins, daughter of Mr. Stephen Hopkins, and a former wife. They came in the Mayflower.
Constance (Hopkins) Snow died Oct. 1677.
Henry F. Waters, in his Genealogical Gleanings in England (Register, vol. 39, page 166), states that Joseph Walker of St. Margaret's, city of Westminster, gentleman, in his will dated 13 Feb. 1666, proved Feb. 27,
1666, bequeaths "to my kinswoman Mary Snow, wife of Nicholas Snow, citizen & armourer of London, whome I nominate executrix." Also the will of George Upham Wiveliscombe, Somerset, dated 1653, mentions testator's brother-in-law Nicholas Snow. This Nicholas Snow and Mary his wife may have been the parents of our Nicholas. He names his oldest daughter Mary.
Did Mary Snow, daughter of Nicholas Snow, Sr., and Elizabeth Rowlles, marry George Upham? This site indicated it was so.
Nicholas Snow's (father-in-law of Constance Hopkins) memorial at FindAGrave.
A post on the Massachusetts And More blog featured Nicholas Snow and Constance Hopkins.