Do you have any info on siblings? I ask because I have a Tabitha Dillahunty born February 20, 1855 in Camden, Ouachita, Arkansas, USA. The birth dates are close enough that they could be siblings. Her parents were Francis Marion Dillahunty (father) and Susan Elizabeth Carter (mother).
P.S. Though I don't have the research to prove or disprove it the family story is that all Dillahuntys are related as there was 1 Dillahunty who brought the name to America. With that in mind I say, "Glad to meet you cousin." :-)