Hello! I'm hoping there is someone out there that can help or atleast point me in the right direction. My great, great grandfather came to the Americas from France and I would like to know if there is a way to research the old ship logs. I know many companies kept their ancient logs

and this might help me find out just where exactly he was from.
If there are no logs or companies to contact, does a list or site exist where I can research ships that sank in the 1800s? Coming back from a trip back to Europe (could be Spain or France), the ship was lost and my GG grandfather died, leaving GG grandmother a widow in Mexico.
HELP!
Sunny