Search local and ethnic newspapers for information about your immigrant ancestors. Obituaries and other notices pertaining to life events (birth, marriage, anniversary, etc.) frequently list the town or county of origin for immigrants. You may also find lists of new arrivals, immigrants who were treated in a local hospital, lists of arriving indentured servants or apprentices, queries about missing relatives or friends, and notices of probates of estates–all of which may include clues to the immigrantâ€™s origins. And donâ€™t just look for direct line ancestors. While your ancestorâ€™s obituary may not list that town of origin, the death notice of a sibling or cousin could be just what youâ€™re looking for.
Check for newspapers in online collections like those at Ancestry. Inquire at local and ethnic libraries and genealogical/historical societies as they may have or know of collections, indexes, or compilations. State libraries and archives are another good place to check.