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Welcome to
19th Century Masterfile

19th Century Masterfile is a vast "Index of Indexes", and is the largest resource for historical research prior to 1925.

19th Century Masterfile brings together over 60 subject indexes to:

Periodicals
Newspapers
Books
US Congressional Record
US and UK Government Documents
US Patents

You can query over 8 million citations in 19th Century Masterfile in a single search.