Herbert Hoover actually said...
It is hereby ordered, under authority contained in the act of June 21, 1906 (34 Stat. 325-326), that the trust period on the allotments of the Rosebud Indians in South Dakota, which would otherwise expire during the calendar year 1930, be, and is hereby extended for a further period of ten years, with the exception of the following:
03/11/1930