I am looking for Linkhart information as well...my great-grandfather was Edgar Kane Linkart, born in Cole, Co. (IL??? or Ohio??? November 17, 1860. He married my great-grandmother, Mary (Mollie) Nesmith October 24, 1899 in Johnson County, Iowa. His year of death is 1947, and that is all that is on his tombstone. He was the son of Joel and Eliza (Black) Linkhart.
I have traced genealogy back through Mollie's family in order to be able to join the DAR (paperwork is on it's way!) and, according to family history, we can do the same through both Joel and Eliza, but that is only hearsay and I would like to follow through!
Hope to hear from you soon! I have nothing else than that above!