Looks like the Irish voted Conservative and the English Liberal.
Yes (in general), although there doesn't seem to be a distinction between Irish Catholic and from what's now Northern Ireland. Methinks there might have been a big difference between the two. These elections were (IIRC anyway) before sectarianism became a big problem in Ontario though.
Looking at a map I've got (not entirely sure how accurate it is), areas of older English settlement in SW Ontario seem to have been more likely to vote Tory than areas of newer English settlement down there. Hmm...