Marriage Book A is found in the Recorders office in the Polk County Courthouse, Bolivar, Missouri.
Groom: Campbell, William
Bride: Frieze, Matilda
Date: 25 Jun 1836
This date is contradicted by a newspaper article found in the Bolivar Herald (Bolivar Free Press), which needs to be transcribed. The date in the article indicates 1835, but I have not personally viewed Marriage Book A for verification. Also based on the date of birth for their first child, John, born 13 Jun 1836.