01 April 2011
Married in 1834 and 1836
A search of the Ohio Marriages 1790-1950 on FamilySearch.com indicated two marriages between Jemima Rampley and Sanford Clark, both in Coshocton County. The dates are different and they are two years apart. The images appear to agree with the index dates as shown above, but I'll have to take a close look and see if there is anything unusual about either entry, comparing them to other entries on the same page.
It's possible there was a divorce or something else in between. Right now I'm not certain. We'll have images of the records to post later and research will progress from there.
Just do not always assume the index is wrong.