1John Quincy Adams to Thomas Boylston Adams, 20 July 1800 (Adams Papers)
...the attempts lately made here for producing sugar from beets, of which I believe you heard...
2To James Madison from David Bailie Warden, 1 March 1812 (Madison Papers)
...to you, the following statement of the Manufactory of sugar from Beets, of Indigo...
3Thomas Jefferson to Alexis Marie Rochon, 14 December 1813 (Jefferson Papers)
sugar; from beets [index entry]
4Thomas Jefferson to André Thoüin, 14 December 1813 (Jefferson Papers)
sugar; from beets [index entry]