1To Thomas Jefferson from William Tatham, 17 February 1790 (Jefferson Papers)
In hopes an opportunity may offer this week to Monticello, I shall embrace it to solicit Your Patronage and assistance in a business [to] which I have turned my attention till something of greater moment may offer thro’ the channel I consulted you about before you left us. I have in view two objects, the first a map of the southern division of the United States, including all to the southward...