Patricia, I just have a index of marriage of St.Clair County from 1855-To-1874, (No dates). and I live about 110 miles from Osceola, Mo. the County Seat.
Write--
Ruby Shirk
RR-3
Osceola, Missouri 64776

Ask her to help you on this, Give her the names, Book number, and page number, that will help her. She can get you copy of the Marriage license, or just information off of the License. (At that early time there is not mutch of a License, It is just wrote in the Book)

I found a BIOGRAPHICAL on GEORGE PRESTON --Page 1055--- If this is in your line, Contack me and I will copy it for you.
this is in the OLD OLD St.Clair County History book.

Dick H. Elliott
DMELLIOTT@AOL.COM