For records since 27 September 1906 contact the nearest Federal Building. They can help you obtain forms to have a search made through the Immigration and Naturalization Service in Washington, DC and through state offices. For records filed before 1906 write to the county clerk at the courthouse near the place where the ancestor lived. Adjoining counties may need to be searched. As Vermont does not have any sea ports, records of Boston and other New England ports should be searched. See the chapter on Passenger Arrival Lists in the Guide to Genealogical Research (Ref. CS69 A1 V54 1983), published by the National Archives, for lists of ports.