I also am researching family in Kingston and have ordered the microfilms for St Mary's Cathedral. They are gold mines! Here's the link:
https://www.familysearch.org/search/catalog/show?uri=http%3A...

All my Crowley, O'Garas, and Wards who lived in Kingston (andI think they ALL must have!) were in that parish. Every birth, burial and marriage can be found.

It costs $8 per film, and you can keep it for three months.