Judy, when I saw you had closed this, I couldn't help feeling disappointed for you, and decided I'd take a look - see if I could find anything, knowing it was a long shot.
A one-to-many display on GEDmatch does have some Parker's and Moore's, which *might* be a connection to your Mom's Parker and Moore ancestry. They are all small matches, but that's somewhat expected for distant matches. Disappointingly, there were no Chappell's at all.
Then I looked at the highest matches with a GED or Wiki symbol. I didn't recognize anyone in the first GED. The second GED had a Palatine Parthenia Chappell in his ancestry! And she was born in Alabama and died in Texas in 1911! And her father is Miles Chappell, and her mother is Priscilla Parker! Those are your great great grandparents. So I would say your DNA test does show good evidence linking you to your mother and her ancestry.