So I've spent the better part of the day going page by page over the 1850 Butler County Ohio census records - covering 4 twps, and the only place I found Hendricksons was in Lemon Twp. Going to Lemon Twp in the 1840 census, I found one Jacob Hendrickson with a son under five. My George Hendrickson was b. 1837, Butler County, OH, according to his Civil War records. Have marriage records for Jacob Hendrickson - Catherine Schenck, but can't find any more on them. Jacob isn't in the 1860 census. Once again - George's wife had John Hendrickson and ?? Norris on his death certificate. No clue where to go from here, so If you have any suggestions, places I can searched that I haven't already done so in the past 40 years, I'm listening. And thanks for your help thus far.