LOST ON BOARD

Hello Everyone,

I would like help on my questions.

An ancestor of mine from what I have been told was lost at sea, what I would like to know if he was the only person or were their others on board who were lost.   Also would there be a Head Stone giving details of his date of death and where would this Head Stone be. 

HARRY HANCOCK on board THE THOMAS was lost at sea on the 7th November 1815 on his way to Halifax from England. 

Hoping someone can give me any information.

Robyne