Nace (1773-?) was one of Jefferson's slaves he inherited from the estate of John Wayles. He was born in 1773, the son of Nan and Frank. The family was located at Elk Hill in Goochland county when Jefferson inherited them. However, Nan and Frank died soon after and Nace (called Natia in the 1774 rolls) was raised by his uncle Jame Hubbard (and his wife Cate) at Poplar Forest. At some point Nace became foreman of labor and he had an unkown illness in 1811. From at least 1817 he was the gardener at Poplar Forest and sometimes drove livestock from there to Monticello in 1821. It is unclear if Nace was ever married.
Primary Source References 
1774. Listed as "Natia. 1773" the child of Nan and Frank, living at Elk Hill, part of Wayles inheritance. 
1783. Listed with Cate and Jame Hubbard and their children in Bedford County. 
1805 July. Listed with the Hubbards in Bedford County. 
1811 December. (Memorandum to Jeremiah Goodman). "Nace, the former head man, and the best we ever known, is to be entirely kept from labour until he recovers, which will probably be very long. He may do any thing which he can do sitting in a warm room, such as shoemaking and making baskets. He can shell corn in the corn house when it is quite warm, or in his own house at any time." 
1817 March 6. (Jefferson to Joel Yancy). "I believe I left directions for Nace as the garden. Some artichoke roots are sent by the waggon which he must plant in the locks of the fence within the large garden. Those we got from Mr. Clay are not the true kind. They will carry some Pride of China plants which may be planted somewhere near the mounds." 
1818 May 3. "Nace ferrges. to Monto. .25." 
1819 January 17. "I shall be very glad to recieve [sic] the latter peas. I liked so much the last year and hope Nace has saved me a full sowing of them." 
1821. (Joel Yancey). "The Bearer Nace, the property of Mr. Thomas Jefferson is on his way to Monticello, with Beeves and Muttons for his Master, he will want some provision on the road for his cattle. Should he be furnishd. by any person, and given him (Nace) a bill of it, they will certainly be paid, (if not sooner) by Mr. Jefferson when he makes his visit to Poplar Forest in next month." 
1821 March 12. (Joel Yancey to Jefferson). "Nace sets off this morning for Monticello with 2 beeves and six muttons...Nace is unwilling to undertake to Drive him [a steer "still a little vicious"]..." 
1821 November 29. (John Hemings to Jefferson). "I am sorry to complain to you so near the close of my worck. Above all things on earth I hate complants but I am blidg [ ] bin going to Poplar Forest severall falls and that is not the sseson for razeing any kind of vegetable and the very moment your back is turnd from the place Nace takes every thing out of the garden and carries them to his cabin and bury is them in the ground and syas that tha are for the use of the house. I dont set up Myself for the things thats made for your table but as common a thing as [greens?] which we ar suffering for tha were mour or lest of 2000. I replyd three or four times and it pervealed not. The pipel tels me that he makes market of them at the first oppertunity. All ways that is the resons he dont give any..." 
1826 December 5. (Inventory and appraisal of Jefferson property in Campbell County). "Nace a do. do. 200." 
1. Please note that this list should not be considered comprehensive.This section is based on Lucia Stanton, Monticello Research Report, 1993.
2. Betts, Edwin M., ed. Thomas Jefferson's Farm Book: With Commentary and Relevant Extracts from Other Writings. Princeton: Princeton University Press, 1953. Rep. 1976, 1987, 1999. Manuscript and transcription available online at http://www.thomasjeffersonpapers.org/farm/, 8, 17.
3. Ibid, 30.
4. Ibid, 60.
5. Ibid, 129-130.
6. Betts, Edwin M., ed. Thomas Jefferson's Garden Book, 1766-1824: With Relevant Extracts from His Other Writings, 1944. Rep. 1999. Manuscript and transcription available online at http://www.thomasjeffersonpapers.org/garden/, 466.
8. Bear, James A. Jr., and Lucia C. Stanton, eds. Jefferson's Memorandum Books: Accounts, with Legal Records and Miscellany, 1767-1826. Princeton, NJ: Princeton University Press, 1997, 2:1344.