Do you think your mentioned family might also contain Jonathan EADER, b MD, 7 Dec 1829, d TN, 21 May 1894? He married Catherine P, last name unknown, and they were listed in Brownsville Haywood Co TN in 1870, he was listed as John, born MD, age 40. She was listed as Cate, age 35, b VA. Living with them were son, L.W. age 11, b IA, John age 20, born in Denmark, parents both of foreign birth, Siras 30, a black man, Jain?, 25, a black woman, and John James, a black man. In 1880 Jonathan and C.P. his wife, were living in Haywood Co, with L.W. age 21 b IA, and Nancy HERING, a black female age 48. Catherine is listed in Haywood Co TN in 1900 census, not far from son, Lewis W EADER. I have a report of her death from old newspapers. I also found a Jonathan EADER, born MD, age 40 in 1860 Haywood Co TN census, living with P. WILSON, a physician. On the tombstone for Jonathan EADER in Oakwood cemetery in Haywood TN, a guess has been made about a notation. I believe it might say born Frederick Co. I have more possible connection for this family, if you would like to have it.