I have a copy of Doris' document. It can get confusing because some people list Georg, as George and Johan and Johann. Or the first and second names get switched.
Bernhard (with an h)and his wife Anna elisbeth Orner (not Arner) had a son George Jacob Rex b. June 17, 1750. He married Anna Maria Yates.
Their son George Adam Rex, b. "about 1777", married Anna Maria Spengler. They moved to Stark Co., OH. I don't show a second marriage. No clue who Christine Weaver is. don't have children listed. There are not two George Adam Rexes.
Bernard Jacob's son Wilhelm Rex b. Feb 12, 1756 married Margaretha (unknown) and had 3 sons one of which is Johan Wilhelm Rex (exact spelling) Sept 24, 1781 married Maria Magdalena (unknown).
Anna Maria Hunsicker b. about 1755 married Johann George Rex (exact spelling). He was born about 1750. His parents are Wilhelm Rex (exact spelling)b. 1721 and Margaretha Rupert b. Nov 25, 1723.
I hope this helps.