It appears that Elizbeth Watson and Edy (Edith) Watson are the daughters of John Watson that is listed in his 1784 willl in Henry Co.Va. See Johnson Marriages below.
"Henry County Virginia Will Abstracts,
1777-1820", by Lela C. Adams.
p. 12 - I:85, Will of John Watson.
Written 30 Oct 1783 ; Proved: 25 March 1784 .
Legatees: sons: Alexander Watson, James Watson; daus: Elizabeth Watson, Edey
Watson, Martha Watson; No wife mentioned.
Exors: James Watson & Hawood Masshire?.
Wit: Zackariah Prather, William Spencer, Benjamin Griffith.
Alexander Watson married Elizabeth Willis 7 Aug 1785 in Henry Co,. Va.
James Watson married Lydia Willis 2 July 1789 with Alexander Watson as surety in Franklin Co., Va
Both Willis girls are the daughters of John Willis and Phebe Bennett who came from Chester Co., Pa to Henry Co., Va I believe John Willis died in Franklin County ca 1800.
I am trying to determine who the parents are of John Johnson that married Elizabeth Watson 4 Sep 1786 in Franklin Co., Va and also William Johnson who married Edith Watson 13 Sep 1786 in Franklin Co., Va. These marriages were only 13 days apart. They are the daughters of John Watson in the 1784 will in Henry County, Va.