The 1840 census for Knox county, Clinton Twp. shows a Samuel HOOVER.He is possibly related by marriage to the Andrew CASTO listed on the 1830 Knox co. census.An Emanuel HOOVER was born in Knox co. in 1822, the son of John HOOVER and Deborah. This Emanuel had a brother named Henry M. HOOVER born in 1826. Emanuel's wife was Catherine HYDE. Any information on these groups appreciated.