To the Senate of the United States.
I lay before you, for your consideration, a treaty concluded with the Omaha, Ioway, and Otoe tribes of Indians, and sanctioned by the Yancton and Santie bands of Sioux, by which a tract of land situated on the, south side of the Missouri between the Great and Little Nemahaw rivers has been ceded to the United States.
It appears that the consent of the half-breeds of the above-mentioned tribes and bands is wanting to perfect the treaty. This tract of land was ceded by the treaty of 15th July, 1830, to them by the above-mentioned tribes and bands of Indians, and can not be taken from them, even for such a valuable consideration as will relieve their wants, without their assent. In order to avoid unnecessary delay, I submit it to your consideration in order to receive an expression of your opinion as to the manner of obtaining the assent of the minors, whereby all unnecessary delay in the final action upon the treaty will be avoided.
M. VAN BUREN.
Martin van Buren, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/201828