Since don't seem to be able to post a follow up message I will post a new message. My 5Xg grandfather, Joseph Mould, is buried in lot 2E, High Street Cemetery, Norfolk N.Y.I don't have much information about him, other than he had three children, lived in Charlotte Vermont andwas born in England in the 1700's. In May 2005, I will try to get to Norfolk so I can examine the grave marker and do some local research of church records.
His son ,Thomas Mould, 2nd of Joseph's three children,farmer, born Charlotte VT. Dec 25, 1797, died Feb 7, 1889 , m Caroline Taylor 1799-1871., lived mostly in Stockholm, NY, had four children, Willis ,Carr (Carruthers?)and two others of unknown sex (wouldn't be surprised if Thomas had a son also named Joseph).
Willis is my 3XG grandfather and he had a son and daughter, who survived to continue the line, but I don't know of any Kathryn Mould in my direct line.I know very little about Willis' brother Carr and nothing about their other two siblings, so it is possible that your great grandmother is descended from one of Joseph's other children or from Thomas' son Carr/other children.
I would concentrate around Charlotte,VT and Stockholm, N.Y.
Willis Mould and my line remained in the Keeseville, NY area long into the 20th century.I can check with the other family genealogist to see if she knows of anything which you might find useful.