I own three books used to try to find a seafaring ancestor. I am willing to do look ups using these books.
I have a copy of The Maritime History of Massachusetts 1783-1860
I have a copy of The Ships Locator - this is a reference to over 2,000 ships, schooners and other vessels of the nineteenth century New England and the Atlantic Seaboard with a separate index to more then a thousand vessel masters
And I have a copy of The History of the American Whale Fishery by Alexander Starbuck - this book has lots of Whaling ships names and crew names