This primary source comes from the Records of District Courts of the United States.
Full Citation: Letter from Special Assistant U.S. Attorney to the Attorney General; c. 6/15/1917; Records of District Courts of the United States, Record Group 21. [Online Version, https://docsteach.org/documents/document/letter-from-special-assistant-us-attorney-to-the-attorney-general, April 24, 2024]