The Institute of Business and Economic Research and the National Archives (NARA) Pacific region have collaborated to made available a research tool to discover information about the hundreds of thousands of people that passed through the immigration stations in San Francisco and Honolulu between 1882 and 1955. Nearly 250,000 of them are the subject of federal reports and records, including immigration investigation case files of people who tried to immigrate--some successfully, some not--during the period of the Chinese Exclusion Acts, 1882-1943. NARA-Pacific Region, in San Bruno, California houses the records. Through this link you see if a case file is available. The actual physical case files are not visible on line. However, use this tool to get the case file number, and some basic information about the person.