Yes, there are. Long ago, I read a historical novel that was based on those scraps, but I have never been able to find any hard info on them at all.
That was probably 'Eaters of the Dead' by Michael Crighton.
It was made into a fairly good movie starting Antonio Banderas a few years ago.
I would give you some citations on the historical events, but it's too cold to root around in book boxes in the attic.
So9