8/17/1870 Ross, Vermilion Co, IL. At census time John J Davidson was a 32 year old farmer with a large estate worth $12,600/2533. Sarah J was 30 and their children were Minnie, 9, Elwood, 8, Gertrude, 5. Also counted there was Sarah's uncle Thomas Gundy, 54. Next door was James Davidson, 64. John's father?