Re: John Riley Shumaker's parents
Sorry I'm not going to be much help, but I did find this that is an interesting lead to follow up on:
"In Darke Co., O., on the 8th day of last October, Stephen Wade was murdered by a gang of thirty unknown men....The last grand jury found indictments against several prominent citizens of Darke Co., O. and Randolph Co., Ind.William Shumaker and Lewis Burden, charged with murdering Wade..." The National Police Gazette (1845-1906), Feb 8, 1879, Vol XXXIII, No. 72
My branch of Shumakers lived in Fairfield and Crawford Counties, Ohio.I do know of one branch that moved to Darke County but I don't have your William or John Riley tied into them.
John H. Shumaker and wife Catharine Keckler married in 1857 in Fairfield County and moved to Darke county before 1870.They were still in Darke Co. in 1880 but had moved to Whiteside, IL before 1900.
Hope this helps some.