I think the great Miramichi fire of 1825 was far more destructive than any of the ones you mention. My mother tells me all the time how her great great grandmother Lucie Montgomery at 7 survived when her and her mother spent the night in the river to save themselves. All that was left was a will to survive and a lot of hard work as winter was coming fast, it was not easy but she did grow up to eventually have  a family of her own, She came from Ireland with nothing but the clothes on her back when she was 5 years old.  How hard was it for our people to come here and make a life, with nothing, amazing really.