Sources & Information:
Court Activities: John Ellis date of birth in 1680, on IGI Massachusetts, page 12060, May 25, 1705 John Ellis and three others complained to the General Court that although they paid their taxes in Harwich they were being punished by the sub-district called Monomy for not paying taxes there; which petition was received and the General Court ordered that they should continue to pay taxes to Harwich until a learned Orthodox minister should settle at Monomy, when the Court "may give further orders." lived in that part of Harwich called Monomy, where he died. before January 7, 1712-13, upon which date his widow Martha was appointed administratrix of his estate; his birth dates of children were not found but June 23, 1717 his widow presented their children--then living--for baptism in the church and they were on that date baptized:

The New England Historical and Genealogical Register, April, 1966, page 104, by Lydia B. (Phinney) Brown, regarding Martha (Worden) Severance. Also page 105-106. October, 1965, page 267-268.

The family of Lt. John and Elizabeth (Freeman) Ellis of Sandwich, MA., compiled by Col. Harry H. Ellis, USA, Ret'd.

History of Eastham and Orleans, MA., Vol. 7, John Ellis and Martha Severance were married by Captain Sparrow, 21 June 1706.

Miscelleanous Items:
Copy of Record of Marriage, Town of Orleans, year 1706, Vol. 5, page 341, No. 3, issued by Town Clerk, 15 May 1980, for John Ellis and Martha Severance.
LDS, Family Group Records, Vol. 157, 1680.
LDS, Family Group Records, Vol. 157, 1711.
Ellis genealogy collection by Edward D. Ellis.
Charles Roscoe Howland, Late President of The Pilgrim John Howland Society.
< http://www.gendex.com/users/hhadaway/harry/fam03659.htm >
Harwich Town Records
Dartmouth Vital Records.

History of Chatham, Massachusetts, by W. C. Smith, page 162. "John Ellis, a recent settler, son of Manoah Ellis of Harwich, died on October 19, leaving a family." Also noted is: "John Ellis of Harwich married Martha Severance, daughter of Joseph, June 21, 1706, (East.REc.) She was appointed administratrix of his estate Janu. 7, 1712-3. On June 23, 1717, Widow Ellis, Benjamin, Joseph, John and Thankful were baptized. (Har. Ch. Rec.) These four are believed to be his children."

Family Group Record <familysearch.org> John Ellis & Martha Severance and children Benjamin, Joseph, John and Thankful Ellis. John's birth given as About 1680, Harwich, Barnstable, Ma.