James Jackson was born c1670, possibly on 1 July 1670, in Hempstead, Long Island, New York, the second of eight known children and three known sons of John and Elizabeth Seaman JacksonKimble, and thus was the grandson of the immigrant Robert Jackson (b c1618 in Nottinghamshire, England; died 1683 in Hempstead).Robert Jackson of Hempstead, Long Island, New York.’‘
In 1694, when he was probably in his mid-twenties James married Rebecca Hallett, a daughter of Capt. William Hallett Jr and Sarah Woolsey, in Halletts Cove, now Astoria, Long Island, New York. (Rebecca was born on 31 Aug 1675 in Hallett's Cove (now Astoria), Queens County, New York. She died 8 April 1730 in Rocky Hill, Flushing, Queens County, New York and was buried in Hallett's Cove. Rebecca bore James twenty children (all single births).
"Rebecca died on 30 April 1730, 11 years after the birth of her youngest child. James remarried a few weeks after her death and the Flushing, Long Island, Quakers 'dealt with' him on 3 June 1730 (4th month) for remarrying too soon. Apparently they didn’t like his response because on 6 May 1731 (3rd month) they disowned him."
Of James it has been written: “[He] seems to have been a useful citizen, for in addition to being the father of twenty children, he was a man generally looked to for advice and was chosen together with Col. Isaac Hicks as referee in a dispute between Massachusetts and Rhode Island relative to the boundary line between them. The Colony of Rhode Island was so well pleased with their conduct and endeavor to reconcile the people of the two governments that it voted each of them a silver tankard of 50 pounds value with the arms of the Colony handsomely engraved thereon." 
James Jackson was named as one of the executors of the will (1727) of his father-in-law, William Hallett.
Comments about James from various sources
Rockaway records website states that James "the third son and eighth child....settled in Rock Hill, Flushing, Long Island....His sons carried the name of Jackson into NJ, NY, PA, VA, GA, OH, KY & TN."
From Robbins' book: "While his principal place of residence is given as Rocky Hill, Flushing, yet he appears several times in later years in connection with the affairs of Hempstead as though still a resident. This was probably due to his being still a land owner in the older town."
Note concerning Bunker's record: It appears to me (Janie) that Bunker's dates for James & Rebecca are both death dates, not birth dates.
From the Book, Pioneer Life on the Bay of Quinte:
James' son Robert Jackson is the possessor of a "History of the Quakers, 1415-1717," printed some time in the eighteenth century, which contains an interesting record of the Jackson family. We excerpt a page from this book-probably the oldest one in private hands in Canada today-containing the dates of the births of the children of James and Rebecca Jackson, of Flushing, in Queens County, Long Island to wit: Thomas Jackson, born 1694; Mary, 1696, Sarah, 1697; Rebecca, 1699; John, 1701; Charity, 1702; Elizabeth, 1703; James, 1704; William, 1705; Hanah, 1706; William (2), 1707; Martha, 1708; Joseph, 1710, Richard, 1711; Phoebe, 1712; Robert , 1713; Jemima, 1714; Samuel, 1715; Stephen, 1717, and Benjamin, 1719.
From Bill Jackson, descendant and researcher:
"At least three sons of James left New England for North Carolina long before the (Rev) war. Benjamin settled in Anson County in the Pee Dee region with Stephen and John, the Jackson who sold the forge in New Jersey. Deeds show Benjamin with several hundred acres of land granted by the North Carolina governor.
"In 1764, the three brothers found themselves in another state without moving. Redrawing of North Carolina’s border put the Pee Dee in South Carolina, in the Cheraws District that later became Chesterfield County.
The book A Century and a Half of Pittsburg and her People, states that James’s children migrated to New Jersey settling near Rockaway and Morristown, where they undoubtedly became farmers.
Will, death, and burial
James' s will was dated 27 September 1735. He died in Flushing, Queens County, New York, a few days later, five and a half years after the death of his first wife, Rebecca. He is buried in Rocky Hill Cemetery in Flushing. Rebecca is buried in Hallett's Cove (now Astoria), Queens County, New York.
It may be possible to confirm family relationships with James by comparing test results with other
carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with James: