I just came accross this post and needed to reply.
I am a GG granddaughter of Joseph S and Mattie Blackwood LArue....thier daughter Anna b. 1892 married my G grandfather Andrew Geppner of Greenfield, Saratoga Co NY....I have a photo of Mattie and Joseph's headstone in Sweetman Cemetery,Charlton NY...her 2nd husband "Barrie" is also on headstone....my records show she was married X3 ????