1766: Mentioned in will of father: John Slone gets 50 acres in Town of Lyme 3rd div.
1773, April 26: John & David Sloan listed as resident of Lyne Twp.
1775: John Sloan, (N. H.). Captain New Hampshire Militia.
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1777: The island opposite the southwest corner of Lyme was granted by Governor Wentworth to Benjamin Grant, and annexed to Lyme for purposes of taxation upon petition of the selectmen in 1788. During the Revolution, committees of safety were chosen--that of 1777 consisting of Dea. Joseph Skinner, Walter Fairfield, Thomas Porter and John Sloan.
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1790: I'm assuming is is still alive and living in Co. plus assuming that John Jr. is son. IGI doesn't list a son John!
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"Upon a broad marble slab near the southern entrance of the cemetery at Lyme Plain is the inscription: "JOHN SLOAN, died June, 1824, aged ninety-six. Esther (Spencer), wife of John Sloan, Died December, 1828, aged ninety-six." They were natives of Palmer, Mass., and were the first settlers of this town.
According to Moore and Farmer's Gazetteer of New Hampshire of 1823, "Walter Fairfield, John and William Sloan, and others from Connecticut" made the first settlement in Lyme, May 20, 1764, and in the old burying ground we find stones erected in memory of William and David Sloan, brothers of John, both of whom probably died before 1790. The first habitation of Capt. John Sloan in Lyme was built of logs, and stood upon the high river meadow north of Fairfield brook, but this was accidentally burned after a few years, and he next located upon the present farm of B.T. Washburn where he spent his life. He and his wife were married over seventy years, and reared children as follows: Matthew, David, William, Spencer, Sarah, Betsey and Polly......."



Sources:
1. "History of Lyme, Grafton Country, New Hampshire"
2. New Hamshire Wills: 1764-1767 p. 348-9 [Monita's reseach]
3. Census 1790: Grafton Co. NH. pg 35, Lyme Town [3,0,1]
4. "American Biographical Library", (Salt Lake City, UT: Ancestry Incorporated, 1996.), pg. 500, [Military]

1. Sarah Sloan b: ABT 1754 in of Lyme, GRAFTON Co. NH.
2. Elizabeth Sloan b: ABT 1757 in Lyme, GRAFTON Co. NH.
3. Mathew Sloan b: ABT 1766 in Lyme, GRAFTON Co. NH.
4. David Sloan b: ABT 1768 in Lyme, GRAFTON Co. NH.
5. William Spencer Sloan b: 26 AUG 1770 in Lyme, GRAFTON Co. NH.
6. Spencer Sloan b: ABT 1772
7. JOHN SLOAN b: BEF 1774 in probably Lyme, GRAFTON Co. NH.
8. Betsy Sloan b: ABT 1775
9. Mary Sloan b: ABT 1764

1. Title: "History of Lyme, Grafton Country, New Hampshire"
   Author: Hamilton Child, Janice Brown transcriber
   Publication: Gazetteer of Grafton Co. NH., 1709-1886, on-line
   Repository:
   Note: http://www.nh.searchroots.com/documents/grafton/History_Lyme_NH.txt
   Media: Book
   Page: Pg. 517+
   Text: [John Sloan, location 1773 - 1777]
2. Title: "Patterns and Pieces"
   Author: Luane Cole, editor
   Publication: Lyme Historical Society,1976
   Repository:
   Note: No Copy on Hand, Joan Grant Garipay's source
   Media: Book
   Text: [John Sloan, ypob, parents]
3. Title: "American Biographical Library"
   Publication: Salt Lake City, UT: Ancestry Incorporated, 1996.
   Note: comprised of the following works:
   Biographical Directory of the American Congress, 1774-1949;
   Biographical Cyclopedia of American Women. 2 vols; Daughters of America (Women of the Century);
   Historical Register of Officers of the Continental Army During the War of the Revolution;
   Herringshaw's Encyclopedia of American Biography of the Nineteenth Century;
   American Biographical Notes: Being Short Notices of Deceased Persons, Chiefly Those Not Included in Allen's or Drake's Biographical Dictionary; Plymouth Colony;
   The Twentieth Century Biographical Dictionary of Notable Americans.
   Repository:
   Note: http://www.ancestry.com/search/rectype/inddbs/2016.htm
   Media: Other
   Page: pg. 500
   Text: [Military]