FOUND HIM !!Just needed a name, now it all makes sense.This would seem to be his first wife and then he married Eliza Shoup a year after Amelia died.Also note 2 children lost in Nov of 1877.
Knox Co. Butler township Butler Baptist Chapel - Riley section 1, twsp 6, range 10.On the North side of Walhonding Rd.( SR 715 ) at Riley Chapel Rd( TR 203 )4 1/2 mile East of Millwood.
HARDING: Adab15 Sept 1890 - d 17 Oct 1901 Alexander1844 - 1918 Ameliawife of Alexander1850 - 1891 Burl1887 - 1947 Charles E.1870 - 1957 Furl1889 - 1958 James C. 1867 - 1947 Jeremiah19 April 1903-age83y6m2d John1849 - 1924 Lydiawife of Jeremiah 12 March 190072y6m26d Lydia S. daughter of A & A3 Nov 18776y7m Maria F.wife of John 1847 - 1913 Ralph W.8 April 195228y8m14d Willieson of A & A13 Nov 18772y9m
Knox Co. Death Records Harding:Ada, Lucinda, Lydia, Margaret A, Martin Leroy. (Lydia is a different one than above)
Obits and death notices in Mt Vernon Newspapers: Daniel 1909, Glen 1908, Jerry 1904, John 1888, Mrs John 1876.
If any of these strike your fancy let me know and I will copy the complete info.
I would send for Alexanders death certificate, check for will and probate, and start witht the 1910 census and work back ward to glean information. Should find Eliza in 1900 and Amelia in 1880 You might get lucky and find a parent living with them at some point.
Wish I could fix my own Knox Co problems this easy:)