I don't know about insurance but I used to be a police officer and the person who said check the pawn shops was right. We used to go get stolen items all the time from Pawn shops where the victim found items that were theirs, but the pawn shop won't release the items to them. They have to be picked up as stolen property and then the paper process starts as to who sold it to them. It is worth a try to. Also...once your list is done...it should give you a pretty good indication of the age of the people who took the items. Good luck.
(had to edit this to correct all my fast typing mistakes...)