Right, Saint-Jacques church is now a university. Only the front of the church is still there as the entrance to the Universi of Québec in Montréal (UQUAM). Nonetheless, the church registries exist & have been printed. Unfortunately, I don't have any on hand. Maybe you could post on this page asking if anyone has access to the St-Jacques baptism, marriage & burial registries & if they'd take a look at them for you. Good luck!