Welcome to the forum Vinny.
Trying to keep those root suckers going is not for the faint of heart.
If you have some kind of grow light setup, and can keep them warm all Winter, they'll keep on growing.
A lot of people run into problems with pests, so if you don't want to nuke the plants a couple of times to keep them at bay, it may be worth considering keeping your new plants in the 50 degree range, to allow the roots to settle in to their new home without really forcing the plants out of dormancy.
It might also be a good idea to cut the plants down, so there is more root than trunk. The plants will thank you in the Spring.
You can always wax the cut ends of the cuttings, store them in a ziplock bag in the crisper for rooting in the Spring, or trade them for other varieties with some of your fellow Canadian collectors.
Do you have pics of the fruit or leaves?
Where in Italy did your Grandfather come from?