This is from "The Margeson Family in the Colonial Era" by Norris Margeson Whiston:

From Norris Margeson Whiston, Earltown, RR# 5 Tatamagouche, Nova Scotia B0K 1V0
March 21, 2002: [email: janice.murrant@ns.sympatico.ca]:
"Gideon Margeson was born in New York @ 1754 {MilNYCalRevv1p284} and very probably the son of Peter Margeson, carpenter of New York City {MilNYPro}, and Catherine Carstang, nephew to Gideon Carstang Jr. and grandson to Gideon Carstang {ChNYDutv27p78}. [With Gideon being a very rare name even in New York City in the mid 1700’s, it is very reason to assume connection.]

"On March 17th, 1776, in the Province of New York's first days in the American Revolution, Gideon was in the muster of Captain Abraham Swartwout's Company serving on the American side at Fort Montgomery, New York. {HisNYCalRevv1p284}

"By the fall of 1776, things had changed for those living in New York Province. July 4, 1776, changed the cause of the war from wanting more rights to wanting independence from King and country. That in itself was against many wishes as spoken by some of the delegates to the Continental Congress from New York. Beyond that, the months between August and November 1776, saw the British invasion come. Long Island fell. Brooklyn fell. New York City fell, and finally the rest of Manhattan Island fell. Loyalists and their symbols were struck against. Trinity Church in New York City, the Church of England, had been burned by a rebel mob and Loyalists had been rounded up, including Gideon’s father, Peter Margeson, and sent to other states as a prisoners {MilNYinRevSp238}.

"On March 27, 1777, Gideon enlisted in the Loyal American Regiment under Colonel Beverly Robinson, by Captain Jonathan Randel and given the rank of 3rd corporal in Randel’s company {MilLoyv1867p8}. From March 1777 to June 1778, Gideon served under Captain Randel, attacking Fort Clinton and Fort Montgomery, and stationed, among some places, at Harleam. {MilFox}

"From June 25, 1778, when Gideon was promoted to sergeant, to June 29, 1780, Gideon Margeson was in the company of Captain Morris Robinson, stationed at Mount Morris, Flushing Fly, Harleam Heights, Verplanks Point, and Bloomington {MilLoy1867p20,25,52,58,68} {MilLoy1868p10,21,41,53,61}

"On April 24th, 1780, Gideon was listed as absent and recruiting in New York. On June 20, 1780, Gideon was reduced from sergeant to private and, on June 29, 1780, transferred to Capt. Samuel Wilmot’s Company returning there to the rank of sergeant. After two months, Gideon returned to Captain Morris Robinson’s company with records of his military service ending in August 29, 1780
{MilLoy1868p73,79,80,91,92}

"Besides defeating Forts Clinton and Montgomery, services done by the Loyal American Regiment included movements in New York, Pennsylvania, New Jersey, Virginia, and Connecticut {MilHow#11} {MilBriHeaM356#4858} [Someone might find a better reference to this Regiment’s services than have so far.]

"Gideon married first Mary ___ and had a daughter Mary Margeson who was christened on April 12, 1782 at Trinity Church (Episcopal/Anglican) in New York City {ChNYEsp}. Sponsors of this birth were Richard and Mary Margeson and Mary Hinds. Richard Margeson also served on the Loyalist side of the war in the New Jersey volunteers serving time, before he ever got the chance to do any duty for the British, as a prisoner of the Americans in New Jersey. Mary doesn’t appear to have lived long, as Gideon appears alone as a laborer in Perrot’s Class at Granville, Annapolis County {HisNYGBRv34p39 [R34]} {HisNSAnnSp111} {MilLaw[V9]}

"Gideon Margeson married second Lavinia Wilson {HisNSAnn542},

"Lavinia Wilson was born in Yorkshire, England and was daughter of Robert Wilson and Mary Williamson {HisNSDigp353}. Lavinia Wilson immigrated with her parents and 6 siblings on the ship ‘Thomas and William’ or ‘The Prince George’ from the Port of Scarborough, England on April 12, 1774, and arrived in Halifax, Nova Scotia between May 14 and 16, 1774 . Robert Wilson, then 49, indicated it was high rent that obligated him to quit {Generv20p2}. Robert Wilson purchased property in Nova Scotia but shortly after, moved the family to Grinwick Island 3 miles north of New York City. On March 20, 1778, Robert Wilson made a will and his will was probated on Nov. 15, 1779 in New York. {ProNY [vertfile]}
{HisNYGBRp185-187}. After the war, Lavinia’s brother, Christopher, and mother Mary appear in the muster rolls. {MilLaw} [Someone with the right enthusiasm could probably confirm the right family in Yorkshire, England.]

"Gideon Margeson was a blacksmith. In 1791, Gideon was in the assessment of Wilmot Township, Annapolis County {AsNSAnn#14}. Between 1806 and 1807, Gideon’s name appears in an Annapolis Valley Account book {BusNSAnnp165}.

"Gideon Margeson died July 29, 1842 at Lawrencetown, Nova Scotia, reportedly at the age of 95, {NewsNBWCSJ29July1842} though that seems typical exaggeration."