Youngest son of Capt. Robert Donelson Eaton and Jennet Chamberlain, of Grainger Co., TN. Wm. moved to IL around 1850; in the census of that year, he is living with Wm. and Margaret Humbard in McDonough Co. In 1854, he married Delilah Melvin. They settled in Henderson Co. and had two children, Annette and Milton.