Here's a chart showing the most popular given names used by East European Jewish immigrants in the United States in 1910. The ordering is for immigrants, while the column "Native Born" shows the ranking for those born in the U.S., and the "Native Parents" are the rankings for those with parents born in the U.S. (predominantly non-Jews).

Source: 1910 U.S. Federal Census, a 1-in-250 nationally representative sample. Statistics are for those with a place of birth outside the United States, and a native tongue of "Yiddish". See Susan Cotts Watkins and Andrew S. London, "Personal Names and Cultural Change: A Study of the Naming Patterns of Italians and Jews in the United States in 1910", in Social Science History 18:2 (Summer 1994).