December 24, 1839
To the Senate and House of Representatives of the United States:
I transmit herewith to Congress a report from the Secretary of State, on the subject of the law providing for taking the Sixth Census of the United States, to which I invite your early attention.
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/200564