The bond between people and cats can be an odd one, but they can get really affectionate. We have two now who were both rescued from the street. They mostly get along and like to be with use even if one is still very jumpy.
I can see these furballs meant a lot to you. Their memory will live on (on the blockchain too!).
RE: Ode To My Feral Cat Family. You All Will Be Missed.