Jews have come to America since Colonial Times but in general most of those from Europe came during the Industrial Revolution from Central and Eastern Europe, that Great Immigration period from about 1880 - 1920. So for American Jews, the genealogy research starts with American records as it would for any other American.
Because of intermarriage between Jews and Christians there are Americans today who might not identify as Jewish or who acknowledge a Jewish ancestor - with many rumors of Jewishness as well - who do Holocaust Genealogy.
There are some special considerations in Jewish genealogy that make it a bit more difficult and that is dealing with Hebrew alphabet and translation, Yiddish language, naming conventions, and informal name changes.
I've stated it elsewhere on this blog but that officials at Ellis Island changed the names of immigrants coming through is a myth. They had no authority to do that and were also dealing with hundreds of incoming every time a steamship came into the port in New York. It's likely that sometimes an immigrant's name was written down phonetically but that's not the same as an authority changing a person's name.
However Jewish immigrants DID sometimes change their names, sometimes to a German version from a Polish or Russian one - since German Jews had an easier time of assimilation, sometimes to an English or American name, sometimes to make the name easier to spell or pronounce. These name changes were rarely done formally and legally. In many cases people were known by their Hebrew or Polish or other ethnic surname as well as their new name.
My suggestion is to do the usual genealogy research and perhaps on a marriage or a draft registration or other document the name change will be revealed. Find the marriage record kept at the temple, not just the civil one. Have tombstones translated and get the cemetery record as well as the death record. Remember that if something comes right up on a database that's a blessing but books, microfilms, newspapers, and writing to archives may still be necessary.
C 2024 Ancestry Worship - Genealogy BlogSpot
C Ancestry Worship - Genealogy BlogSpot