Laura, Me, again. I think I might have found something that looks like the same people you are looking for. There was a message posted on ancestry.com. If you would be comfortable sending me your email address, I would send it directly to you. My email address is:
Also I found the following in census records for 1870, Jackson County, Ohio, Lick township:
McManis, Williamage 38 Susanage 36wife Joseph F.age 13son William H.age 10son Thomas V.age 9son(age could be 7) Samuelage 5
I tried looking in Scioto County for 1880 but didn't find anything but there were a number of people with the spelliing "McManes". But the first names didn't really fit. But that doesn't mean they weren't in Scioto County. The indexes are not always complete. Sometimes I have had to go thru the census records page by page.