Anthony (Antonio) Giannini, of Fibbialla, came with Philip Mazzei to Virginia in 1773 with his wife and child. Indentured for five years, he worked in the vineyards and orchards Mazzei established at Colle, adjoining Monticello. Giannini worked for Thomas Jefferson from March 1778 to the end of 1782. Thereafter he was occasionally employed for special skilled tasks.
Some of his activities included collecting seeds for Jefferson's friends in France, planting grape vines in the vineyard, and grafting in the Monticello orchards. Giannini bought land in Albemarle County, where he raised a large family. He has many descendants in the Albemarle area and elsewhere. A number of letters between Jefferson and Giannini survive.
1778 November 1. "Pd. Anthony Giannini for a vinegar cask, & his expences to Rockfish for Umbrellas [trees] 12/."10
1778 November 2. "Agreed with Anthony Giannini that he shall serve me one year from the 27th. Inst. I am to give him £50. & find him 15 bushels of wheat & 480 lb. meat, i.e. bacon when we have it. If Mazzei undertakes in writing to pay the expences of his passage to Italy hereafter, I am to stand security for it so long as he is in my service."11
Brosi, George. "A Journey that Continues to Enoble." Earl Hamner (official website). A biographical sketch of Earl Hamner, one of Anthony Giannini's descendants (mentions Giannini and his connection to Monticello briefly).
1. Jefferson to Carlo Bellini, April 24, 1799, inPTJ, 31:99. Transcription available at Founders Online. This letter contains brief mentions of many of the Italian immigrants that Jefferson had known and worked with.