Washington DC / Baltimore metropolitan area is an increadibly rich area for research in Jewish and Israel Studies. The following institutions are among the most useful in this area. Before going there, please try to get in touch with these institutions to verify their times of operation, rules of using the collections, availability of printing, disability access, etc.
There are still many guides to archival collections that are in print format, in a form of a print bibliography. However, more and more archives are going online with the detailed descriptions of their collections. As you can see, this trend is reflected below.
Archival guide to the collections of the United States Holocaust Memorial Museum
by
United States Holocaust Memorial Museum
Bibliographical studies and notes on rare books and manuscripts in the library of the Jewish Theological Seminary of America
by
Alexander Marx
Catalog of the archival collections
by
Leo Baeck Institute New York
German Jews in the United States : a guide to archival collections
by
Cornelia Wilhelm
The people and the book : the background of three hundred years of Jewish life in America : an annotated list of illuminated manuscripts, rare books, authentic documents, and related materials
by
Joshua Bloch