Ooooops, correction, John O. Lockhart, not Lockhard.

Believe to be:

1860 United States Federal Census about John Lockhart
Name: John Lockhart Occupation: Miller
Age in 1860: 38
Birth Year: abt 1822
Birthplace: Virginia
Home in 1860: Leavenworth, Leavenworth, Kansas Territory
Gender: Male
Post Office: Leavenworth
Household Members:
Name Age
John Lockhart 38
Mary Lockhart 35
Margaret E Lockhart 12
George Lockhart 2

..........

1880 United States Federal Census about J. O. Lockhart
Name: J. O. Lockhart
Age: 58
Birth Year: abt 1822
Birthplace: Virginia
Home in 1880: Dover, Lafayette, Missouri
Race: White
Gender: Male
Relation to Head of House: Self (Head)
Marital Status: Married
Spouse's Name: Mary T. Lockhart
Father's Birthplace: Virginia
Mother's Birthplace: Ohio
Occupation: Farmer
Name Age
J. O. Lockhart 58
Mary T. Lockhart 55
George Lockhart 21
Eliza Buford 50