There are many places one can find biographies of famous and important individuals. Here are some suggestions:
Bibliographical studies and notes on rare books and manuscripts in the library of the Jewish Theological Seminary of America
by
Alexander Marx
Bibliography of Jewish bibliographies
by
Shunami, Shlomo
Repertoire des Articles Relatifs a l'Histoire et a la Litterature Juives Parus dans les Periodiques De 1665 a 1900
by
Moise Schwab
Otsar ha-sefer ha-ʻIvri : reshimat ha-sefarim she-nidpesu be-ot ʻIvrit me-reshit ha-defus ha-ʻIvri bi-shenat 229 (1469) ʻad shenat 623 (1863)
by
Vinograd, Yeshayahu
Studies in Jewish bibliography and related subjects : in memory of Abraham Solomon Freidus, 1867-1923, late Chief of the Jewish Division, New York Public Library.
by
Alexander Kohut Memorial Foundation
Bibliography of Holocaust Literature
by
Abraham J. Edelheit; Hershel Edelheit
Jewish Films in the United States
by
Stuart Fox (Compiled by)
Soviet Jewish History, 1917-1991
by
Luckert, Yelena
Studies in Judaica Americana
by
Rudolf Glanz