1From Thomas Jefferson to George Jefferson, 29 May 1799 (Jefferson Papers)
Oliver Evans’s book on mills. at Pritchard’s I believe.
2Enclosure: Extract of a Letter from Jonathan Ellicott to Thomas Worthington, [ca. Jan–February 1813?] (Jefferson Papers)
books; on milling [index entry]
3Thomas Jefferson to Fitzwhylsonn & Potter, 13 May 1817 (Jefferson Papers)
books; on milling [index entry]