I'm tracing my Dardinger roots and the information I have is that a Martha Jane Mewhorter married John Henry Dardinger (b October 26, 1859). Their child, Carl Edward was born May 23, 1899, so that somewhat narrows down her date of birth, but I have no other direct information.
It seems likely that she belonged to the Marion Co. Meworters, but I don't know the exact connection. One point of congruence is that John Henry's father, Stephen, is buried in Forest, Hardin Co., OH and Robert Meworter's son Henry C., born about 1841 and married 1 MAY 1864 in Marion Co. to Catharine BURK lived in Forest, Hardin Co., OH. Is she Henry's daughter?
If anyone has any information on this point, let me know.