There is bound to be something in at least one of these databases that will help you locate some pertinent primary documents for your paper.
Contains over 1,500 periodicals published between 1740 and 1940, including special interest and general magazines, literary and professional journals, children's and women's magazines, and more.
Atlanta Constitution (1868-1984)
Atlanta Daily World (1931-2003)
The Chicago Defender (1909-1975)
Chicago Tribune (1847-1993)
Christian Science Monitor (1908-2003)
Detroit Free Press (1831-1999)
Los Angeles Sentinel (1934-2005)
Los Angeles Times (1881-1992)
The Michigan Chronicle (1939-2010)
The Nashville Tennessean (1812-1922)
New York Amsterdam News (1922-1993)
New York Times w/ Index (1851-2013)
Pittsburgh Courier (1911-2002)
The Wall Street Journal (1889-1999)
The Washington Post (1877-2000)
America at Work, America at Leisure : Motion Pictures from 1894-1915 offers 150 motion pictures of Americans at work, school and engaged in leisure activities.
The Chinese in California site includes over 8,000 images and other primary documents about the life of Chinese immigrants in California from 1850 to 1925. (Images courtesy of the Library of Congress)