John Thomas is assumed to have come to America, as an orphan, at age 14, in the ship Hopewell, arriving in Boston, MA, in November 1635. He was reared by Gov. Edward Winslow at his estate Careswell in Plymouth Colony. Later, John became the steward of the estate.

John's wife, Sarah Pitney, came to America in 1635 with her mother and brother in the ship Planter and settled in Plymouth, MA, where her father, having come previously, had a home waiting for them.

John and his wife, Sarah (Pitney) Thomas had eight children, all born in Marshfield, MA:

• John, b. 16 Nov. 1649.
• Elizabeth, b 12 Sept. 1652.
• Samuel, b. 6 Nov. 1655; m. Mercy Ford.
• Daniel, b. 20 Nov. 1659; m. Experience Tilden, daughter of Thomas Tilden.
• Sarah, b. 20 Sept. 1661; m. Benjamin Phillips.
• James, b. 20 Nov. 1663; m. Mary Tilden, daughter of Stephen Tilden.
• Ephraim, b. Oct. 1667; m. Alice Church.
• Israel, b. Oct. 1670; m. Bethis Sherman.

Daniel and his wife Experience (Tilden) Thomas had seven children, all born in Marshfield, MA:

• Abigail, b. 11 Sept. 1699; m. Ebenezer Damon.
• Mary, b. 12 Feb. 1700/1; m. Daniel Doran.
• David, b. 1 Feb. 1702/3.
• Sarah, b. 2 May 1705; m. William Lucas.
• Benjamin, b. 27 July 1707; m. Jane Stetson.
• Experience, b. 7 July 1709; m. Samuel Rogers, Jr.
• Mercy, b. 1 May 1712; m. Joseph Osyer.

Benjamin and his wife Jane (Stetson) Thomas had nine children, all born in Marshfield, MA:

• Jane (or Jean), b. 29 March 1732; m. Zephaniah Decrow.
• Daniel, b. 15 May 1736; m. Sarah Ewell.
• Betty, b. 25 June 1738; m. Japhet Allen.
• Lucinda, b. 9 Oct. 1741; m. John Carver, Jr. of Searsport, ME.
• Isaac, b. 7 April 1746.
• Selvina (or Sylvina), b. 1 May 1748; m. John Gilkey. This couple settled in Isleboro, ME, and died there, dates unknown.
• Benjamine, Jr., b. 23 Dec. 1750.
• Lenety, b. 7 June 1753; m. (1) Nathan Kingman; m. (2) Edward Hayford.
• Experience, b. 4 Jan. 1756; m. John Hersey.