I didn't find Moses Jeffreys in Surry, but I did find him in adjoining Sussex County:
Personal Property Tax List, Library of Virginia microfilm 1782-1812
1805 List of John Chappell, Moses Jeffry FN 1 tithe, Ben Jeffry FN 1, microfilm frame 638
1807 List of John Chappell, Moses Jeffry FN 1, frame 723
1810 List of John Chappell, Benjamin Jeffry FN 1, frame 770
1812 List of John Chappell, Moses Jeffry FN 1, frame 857
Paul