Ogier is a VERY old name in Guernsey Co. The Ogiers were in the first group of settlers from the Isle of Guernsey, for which the county was named. Local histories contain much information on the group.
Check the 1860 census index: ftp://ftp.us-census.org/pub/usgenweb/census/oh/guernsey/1860/indx-n-q.txt
The index lists 3 John Ogiers, ages 16, 32 and 60. From there you can go to the actual census listings: ftp://ftp.us-census.org/pub/usgenweb/census/oh/guernsey/1860/
and perhaps find which if any is your ancestor. Happy hunting!