Are there passenger lists from the UK side showing passengers, ship name, and destination?
I have an ancestor, born about 1820 in County Derry, who arrived sometime before 1845. He married in 1845 to an American in Indiana.
I cannot find him in the US passenger list. I find men with his same name but nothing definite, so I thought I'd look from the other direction and see if there is a list of him leaving Ireland and maybe that would provide some clues.