« Reply #4 on: Friday 22 February 13 15:13 GMT (UK) »
As a first step, you need to try Castle Garden which includes many [but not all] entries at New York up to 1892, after which the entries were registered at Ellis Island. There are some other passenger lists available at FamilySearch - Philadelphia, Boston, New Orleans, etc. - but they aren't all indexed.
http://www.castlegarden.org/https://familysearch.org/
Wiltshire: Banks, Taylor
Somerset: Duddridge, Richards, Barnard, Pillinger
Gloucestershire: Barnard, Marsh, Crossman
Bristol: Banks, Duddridge, Barnard
Down: Ennis, McGee
Wicklow: Chapman, Pepper
Wigtownshire: Logan, Conning
Wisconsin: Ennis, Chapman, Logan, Ware
Maine: Ware, Mitchell, Tarr, Davis