I am sorry to hear about your grandmother's passing. Your poor family and her poor kitties. The cats must at such a loss. If you don't mind me asking, where do you live? Maybe I can post them on my website or on Petfinder.com for you if you are in Illinois. If not, I can get you some links to rescues in your area (no kll shelters mainly for cats). I hope I can help you. Maybe you should look into a children's farm or some type of farm for Jill and Callie, that way they can be outside and safe on lots of land where there are no busy streets they can run into.