Hmm.. Would have liked to see more details about the accident itself. The cannonball was cast iron? Any estimation about speed and weight?

Actually the biggest surprise were the walls of the house shown (mostly the exterior wall): Is this a brick and mortar house/wall? Or is this wood/insulation mostly?

Edit: In fullscreen that looks to be a wall made of concrete, with a network of iron/steel to support it? Even if it's a ~thin~ wall by some standards, this is a lot stronger than I initially guessed.