I've just been reading about the great storm so I found your post really interesting.
I've found a few good spots for some primary source material too which are worth checking out:
Firstly
The Storm by Daniel Defoe
and secondly
An exact relation of the late dreadful tempest: or, a faithful...
Really interesting read thank you!
My eldest son, now 6, spoke quite eloquently at the age of 3 about a small house by the sea where he lived with this sister and her children. Needless to say he has neither a sister or children!