February 10, 1807
To the Senate and House of Representatives of the United States:
I communicate, for the information of Congress, a letter from Cowles Mead, secretary of the Mississippi Territory, to the Secretary of War, by which it will be seen that Mr. Burr had reached that neighborhood on the 13th of January,
TH: JEFFERSON.
Thomas Jefferson, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/202510