I do not believe that Henry P. is Correct. I believe it is Henry S. Mckern. see the following info:1860 Census, Washington Twp., Mercer Co., Missouri, pg 186 Henry McKern42MFarmer1250600N. Carolina Lydia25FMissouri M. C.5FMissouri S. P.5/12Missouri Sarah Peacock63FN. Carolina
1870 Census, Morgan Twp., Mercer Co., Missouri, pg 158 McKern, Henry S.53MFarmerNorth Carolina Lydia35FKeeping HouseMissouri Mearyle15FMissouri George E.9MMissouri Delila A.6FMissouri Not Named2/12FMissouri(May) Peacock, Sarah77FNorth Carolina
As you can see this has to be the son of Abraham McKern and Sarah Peacock, because Sarah is living with them.
I do not know who came up with Henry Pippinger Name.