ワシントン州西部の米国地方裁判所の帰化記録名簿　1890年～1952年 米国国立公文書館所蔵　入国帰化局文書
Indexes to Naturalization Records of the U.S. District Court for Western Washington, Northern Division (Seattle), 1890 - 1952. Records of the Immigration and Naturalization Service. NARA, RG85. 35mm silver positive microfilm 6 reels with guide.