William McKinley actually said...
I, William McKinley, President of the United States, by virtue of the authority vested in me by Section 3141, Revised Statutes of the United States, hereby order that the States of North Dakota and South Dakota, now part of the Internal Revenue District of Nebraska, shall be detached from said District of Nebraska and constitute one District, to be known as the Internal Revenue District of Newark, South Dakota.
03/08/1901