This primary source comes from the Records of the Immigration and Naturalization Service.
Full Citation: Appeal Testimony in U.S. vs. Wong Tong; 3/26/1904; Subject and Policy Files, 1893 - 1957; Records of the Immigration and Naturalization Service, Record Group 85; National Archives at Washington, D.C.. [Online Version, https://www.docsteach.org/documents/document/appeal-testimony-us-vs-wong-tong, April 19, 2024]