Very Naive Late 18th/Early 19th Century Ink Drawn Folk Portrait of Abigail, in Mourning Locket

I just fell in love with this very naive folk art portrait miniature immediately, to my eye very full of character and life --purchased from a favorite Pennsylvania based dealer, who always has many many things I covet. I have tried with both a loupe and my phone, but still can't quite make out the full text written at the bottom--definitely her name is Abigail, but I can't quite get her last name, and then what I take for perhaps a monogram and also a date just below. I think the portrait late 18th-first decade 19th century and certainly American, while the pendant, with an opening for a lock of hair on reverse, maybe a few decades little later, but i am not an expert. Ink on paper, with what I think is a very charming combination of loose and fine mark-making. 

2 7/8" x 2 3/8" not including loop. Glass on pendant is curved (convex), so there is some distance between portrait and glass. General surface wear to the pendant as shown; structurally very sound and tightly sealed. There is one small tear/flag to paper of portrait along perimeter right edge near center as evident, minor. Much better in hand, feels more rich and vivid and precisely rendered.