The death date shows May 23, 1720 (66-67)
Maycock, Prince George County, Virginia, Colonial America but link attached to Wikitree profile: https://www.wikitree.com/wiki/Hamlin-941 says
Died before Jul 1699 before about age 44 in Charles City County, Colony of Virginia
and further notes:
Death Date
John Hamlin died between 5 January 1698/9, when he wrote his will, and 3 October 1699, when it was proved in the Charles City County Court by two of the witnesses, one of whom was Micajah Lowe, his son–in–law. He made the following bequests:
He gave his eldest son, "John Hamelin," the tract of land commonly called Hawkes Nest.
He gave his "Loving wife" all the parcel of land commonly called Macocks "Lately purchased of Roger Drayton" and the remainder of his Estate, both real & personal.
His will named Elizabeth as his executrix.[7]
Many Hamlin researchers state Capt. John Hamlin died only a few years before the death of his wife, Elizabeth, in 1720. This is a result of the apparent confusion between Capt. John and his son, John Hamlin, Jr. The John Hamlin who served as Burgess for Prince George County in 1710, 1712, 1714, and 1720 is not Capt. John, but his son John, Jr. Evidence for this conclusion:
Capt. John was actively involved in shipping goods to and from England. In 1698 he contracted with partners Richard Bland, John Taylor and John Hardiman to have a ship built called the "Virgin of Virginia." In July 1699 Elizabeth Hamlin is listed as owner of this ship. Only a widow would be able to claim title to property previously owned by her husband. [3]
Elizabeth Hamlin is listed on the 1704 Rent Roll in Prince George County, Virginia, with 250 acres of land. Also listed on the Roll are her sons Jno. Hamlin with 1484-1/2 acres and Richard Hamlin with 240 acres. The Jno. Hamlin could not have been Capt. John or Elizabeth would not have been listed with land in her own name. She must have been a widow.[8]
As evidence that Capt. John was not the John Hamlin who was Burgess of Prince George County:
Edward Goodrich, brother-in-law of John Hamlin, Jr., was elected to the House of Burgesses in the sessions of 1720-22 but died before he could take his seat. On Friday Nov. 4, 1720 the House made application to the Governor for a "New Writ for electing a Burgess ... in the room of Edward Goodrich, gentleman, deceased. The election was held Nov. 16, 1720 and Mr. [John] Hamlin was duly returned as a Burgess." The language clearly indicates he had served as Burgess before.[1] It could not have been Capt. John since he was deceased when his widow Elizabeth Hamlin wrote her will on 23 May 1720.[1]
These sources indicate Capt. John Hamlin died between 1698 when he and his partners commissioned the building of the ship "Virgin of Virginia" and July 1699 when Elizabeth Hamlin is listed as co-owner.