As noted in Descendants of Sir William Blackstone, a historical puzzle, I have reason to believe that a (potential) ancestor of mine came to America somewhere in the years 1790-1810. He would have come from England, and he would have been travelling with at least one (and potentially up to three) son(s).
His name was Ebenezer Blackstone, and the son(s) he may have been travelling with are William, Hugh Benjamin, and Nathan. I have looked for his name in the immigration documents available at ancestry.com and have been unable to find him. I used the search string Blakstn so as to catch most of the potential spelling variations.
My question is whether there are any other good sources of information relating to immigrations from this time period. I assume that the ancestry.com data is not complete, and I was hoping there'd be something more complete elsewhere.