The National Archives (NARA) at San Francisco holds more than 200,000 investigative case files of several types created
by Immigration and Naturalization Service (INS) District Offices in San Francisco and Honolulu. Most concern Asian
immigrants and Asian Americans from all over the United States who were investigated under various immigration laws
including the “Chinese Exclusion Acts,” 1882-1943. Case files were created when individuals traveled to or from the U.S.
through the ports of San Francisco and Honolulu. These holdings include files of immigrants detained at Angel Island
Immigration Station and similar facilities.