Susannah White is listed (in the Andrew Co. Hist. Soc.'s transcription) as being buried in Fillmore Cemetery, Jackson Twp., Andrew Co., MO. She died 6 Jul 1855. I'm baffled about "Newmark," however. Any chance that it's the words "her mark" after her "signature" (like an X)? Or maybe it was the name of her farm? Hope this helps. Monica