The 1870 census listing did prove to be somewhat difficult, not only because of the penchant for various data providers to intentionally omit important information, but there is also an apparent transcription error in listing the age of James Sanders as 86, rather that the more reasonably expected 36. It can in fact be seen from several examples on the page in question that the census recorder writes this number which is made like a 3, but closed like an 8. This James Sanders is born in PA, rather than OH as in the 1860, although PA is probably correct. The second person recorded is ‘Landers’ Sanders, and I’m not sure what that means. However the children: Daniel, 11; Harriet, 6, and Nicholas, 4, seem to fit, as Nicholas is a name that you mentioned originally. In addition Daniel and Harriet Sanders are the names of an older couple with a daughter from the 1860 Scioto census and it wouldn’t be unusual to find that the children were named for their grandparents. In 1850 Jefferson, Scioto, the listing is SAUNDERS.