In the book "Marion Co MO Marriages 1827-1868" pg 77
Kathleen Wilhem - RR1 Box 150 Shelbyville Mo 63459
The below entry is found:

Armour, Winfield S - Griswold, Ella A Jan 14 1867

In the front of the book it is mentioned that a copy of the page containing the marriage record can be obtained from MS Wilham.
It would be best to contact her for price. Marilyn