Samuel C. Mann

Samuel was born 11 Aug 1842 in Missouri. Married Mary
Harwood 1 January 1868 Jefferson Co. Montana. Died 18 Feb.
1926 Spokane, Washington. I know he had parents but have tried for several years to find them.He has 10 children.
I have all of them, their spouses, and many of their children. Still no parents for Samuel.Help!!!!
Will exchange info.
Wilma