This primary source comes from the Records of the Immigration and Naturalization Service.
Full Citation: Letter to the Honorable Oscar S. Straus from Colonel John Irish; 1/30/1907; 14610-III-C; Chinese General Correspondence, 1898 - ca. 1911; Records of the Immigration and Naturalization Service, Record Group 85; National Archives Building, Washington, DC. [Online Version, https://www.docsteach.org/documents/document/letter-to-straus-from-irish, April 17, 2025]