Further research suggests his name was Louis E., and that it sometimes was recorded as Lewis. He was b. 1871 OH, was in Asheville, Buncombe Co., N.C. in 2/1907, and died bfr 1910.In the 1910 census his mother, Mary, reported that of her 4 children, 2 were living. We know that Marvin & Charles lived near her. So Edward & Louis are the two who died bfr 1910.
I did not find Louis in either the N.C. or OH census index for 1910. But, Heritagequest doesn't do a soundex search, just exact spelling.
Any help with the mysterious Uncle Louis would be appreciated.