Samuel HERRELL, Nancy MILLER in Cass Co., Missouri

Seeking information about the parents and descendants of Samuel HERRELL (1808-1896) and Nancy MILLER (1802-1905), married 1839 in Cass County, Missouri. Their children were:
George W. HERRELL (1839-1864)
Mary Elizabeth HERRELL (1840-?)
Anderson HERRELL (1842-?)
Thomas HERRELL (1842-1902)
Hester Ann HERRELL (1848-1848)
Sara Margaret HERRELL (1848-1940)
Andrew Jackson HERRELL (1851-1923), married 1878, Cass County, Missouri to Sarah Jane HAMBLIN (1863-1931)
John W. HERRELL (1852-?)
Missouri Ann HERRELL (1856-1929), married 1883, Cass County, Missouri to William H. ROBERTS
Nancy Jane HERRELL (1858-1894)
James Simon HERRELL (1860-1924)

Andrew Jackson HERRELL and Sarah Jane HAMBLIN's children were:
Francis Abigail HERRELL (1879-1959), married Robert Lee Cunningham (1877-1925)
Elizabeth Jane (aka Jennie Elizabeth) HERRELL (1881-1959) married George Wesley COOLEY (1879-1956)
Franklin Marion HERRELL (1891-1953), married 1917, Cass County, Missouri to Edna LUMARY (1891-?)
James Charles HERRELL (1887-1975), married Grace BREWER (1891-?)
George Washington HERRELL (1883-1958), married Vica COOLEY (1885-1969)
Clara Mae HERRELL (1897-?), married Searle WILCOX (1895-1949)
Lucy Annie (aka Mary Lucy) HERRELL (1894-1923), married Ray F. Hocker (1887-1969)
Lewis Milford HERRELL (1906-1974), married 1927, Cass County, Missouri to Nora Iona LUCAS (1905-?)

I'm wondering if Samuel HERRELL is possibly James LoganHERRELL Sr.'s brother? And who is Samuel's father? Maybe Anderson HERRELL? Or Andrew Herrell? Anyone have any answers?

Hopefully posting this info will help others get a little farther with their research. And if anyone can help fill in some of the blanks I would greatly appreciate it.