My husband is a descendant of Sevier Kennedy b abt 1852 mother was Margaret Seitz who died at or shortly after his birth, first wife of James Marion Kennedy b 29 Jan 1828 in Greene Co TN who had a brother Robert Porter Kennedy b 26 June 1830 in Rush, Indiana. Parents were John Kennedy and Margaret Tadlock per pedigree of Sevier Kennedy on Ancestry.com

See: http://www.rootsweb.com/~wawallaw/pio2.htm
Biographical Brevities 1882 Walla Walla County
Lewis Kennedy and Robert Kennedy