Having Trouble Traceing Family Tree Past 1851

Lived in Harrison County Missouri upon death buried in Bythedale Mo

Marine Hensley 1851-1933
Father from Kentucky? Mother from New York?
Spouse : Louisa (Shepard) 1855-1974

Children Bella 1877-
Rosa B 1878-
Sarah A 1880-

G Olan Hensley 1891-1970
Spouse: Ellen () Hensley 1894-1964
Children: Charlie Hensley Died WWII
Walter
Chester W
Garland W
Dorral