Digital archive of U.S. newspapers from the 19th century.
ProQuest Historical Newspapers
Collection of major papers, including Baltimore Sun (1837-1986); Boston Globe (1872-1979); Chicago Tribune (1849-1987); Los Angeles Times (1881-1987); New York Times (1851-2007); New York Tribune (1841-1922); San Francisco Chronicle (1865-1922); Wall Street Journal (1889-1993); Washington Post (1877-1994).
More than 130 searchable newspapers published by ethnic groups in 25 U.S. states. Coverage is best for Americans of Czech, French, German, Hungarian, Irish, Italian, Japanese, Jewish, Lithuanian, Polish, Slovak and Welsh descent. From the Balch Collection at the Historical Society of Pennsylvania.
Frank Leslie's Illustrated Newspaper (also called Leslie's Weekly)