April 30, 1858
To the Senate of the United States:
I transmit herewith, for the constitutional action of the Senate, a treaty negotiated with the Ponca tribe of Indians on the 12th of March, 1858, with the accompanying documents from the Department of the Interior.
JAMES BUCHANAN.
James Buchanan, Message to the Senate Transmitting a Treaty with the Ponca Tribe of Indians Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/202677