This is the database result for Amos Markley in the 1830 Census index at Ancestry.com. It indicates he lives in Caldersburgh, Coshocton County, Ohio.
The problem is that the indexer just used the "first" township that appeared on the census page. There are parts of two regions shown on this 1830 census page for Coshocton County-Calderburgh and Jackson Township.
The difference may be minor, but it always pays to actually read the image and being careful when reading that image and importing that information into your "tree."
This is one way that users get discrepancies in their information. It would be easy to conclude that Abraham was living somewhere that he was not.
Abraham is one of the men who purchased items from an 1823 estate sale in Coshocton County which I'm researching for an upcoming issue of Casefile Clues.