Executive Order 1220—Adding Lands to Duck Valley Indian Reservation
It is hereby ordered that the following described lands in the State of Idaho, viz: All that part of T. 15 S., R. 4 E., Boise meridian, lying and being west of a line formed by extending the east boundary line of the Duck Valley Indian Reservation through the said township, be, and the same are hereby withdrawn from settlement, entry, and sale, and set apart as an addition to the Duck Valley Indian Reservation: Provided, That nothing herein shall affect any existing valid rights of any person to the lands described.
WM. H. TAFT.
The White House,
July 1, 1910.
William Howard Taft, Executive Order 1220—Adding Lands to Duck Valley Indian Reservation Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/277126