Hi, Robert I do research for the ainsley family, My wife is born ainsley and raise in Arvida Qc.
Her ancestors come from Megantic area and in direct line with Michel Ainsley maried to Marie Bolduc.
Michel maried marie in 1785 in quebec city, that you are right.
I found on micro file that they maried at ''Holy Trinity Anglican Cathedral'' in Quebec city.
The file show as this: Michael Hodgets, Bathelor, Gardener, late of the parish of Saint Henry and Mary Bolduke Spinster of the Parish of Quebec, were married 13 day of June, in the year one thousand seven hundred and eighty five. By me David Françis DeMontmollin, Rector.
Copy of this document can be obtain from " Societe Historique"
Please let's communicate to exchange any other info that you have and I volunter the same fron this end.