The names you have listed for "your" Henry Mauzy, do not match the names listed as the children of a Henry Mauzy who's will was probated in Fauquier Co. VA 27 Feb 1804, Book 3,498.
There was also a Elizabeth Mauzy's will probated in same location on 25 Aug 1828. Names as the wife of the above Henry of 1804.
I have compiled these wills in book form, e-mail if interested.
I do have a small connection with the Mauzy family for they inter-married with the Blakemore family who inter-married with the Buck Family of Front Royal, Warren Co. VA. No connection with my husband's family.