It seems we have cracked it. This is th entry which I think confirms it:
Registers of the Births, Marriages, and Deaths of the Eglise Francoise a LA Nouvelle York: French Church of New York, from 1688 to 1804
Mariage en virtue d’une licence de l’honorable Cadwallader Colden Lieutenat-Governor de cette province; jay marie le 15 October 1761 a 7 heures du soir dans la maison de Madame de Joncourt Mere; Antoine Wheelock Esquire et Jeanne Delorais de Joncourt Mere, Mr Cromelin et sa femme, Mr Valade, Mesdemoiselles Rachel de Joncourt, Catherine Smith.
Rachel is James Noble's mother who married Isaac Noble in 1764.
It is very likely that Anthony was serving with the British Army in New York at the time of his marriage.