Collection includes materials relating to the Chinese Historical Society of Southern California, Chinese Americans, Los Angeles Chinatown, local organizations, and Asian Americans from the 20th century, primarily in the 1970s-1990s, collected by founder and long-time leader of CHSSC Reverend Paul Louie. This includes organizational and event materials, artifacts, newspaper articles, dissertations, and theses on Chinese Americans written between 1940-80s. This collection also contains information on Chinese Presbyterian churches, photo negatives and slides featuring CHSSC activities and Los Angeles Chinatown, and other research materials from Paul Louie.