I have found a lot about Philip Shaner through the census records of Wethersfield Twp, Henry County, IL.1840-1910 census. Here is what I have on Jacob Shaner. !NAME name from a hand written notes by Elizabeth Ann (Shaner) Johnston, in possesion of Kim Rapacz, found Jan 28, 2000.
!CENSUS 1810 Muncey Creek Twp, Lycoming County, Pennsylvania, page 808 Jacob Shaner males1 under 10, 1 age 26-45 females3 under 10, 1 age 26-45
!CENSUS 1820 Moreland Twp, Lycoming County, Pennsylvania, page 110 Jacob Shanermales 4 under 10, 1 age 10-16, 1 over 45 females 1 under 10, 2 age 10-16, 1 over 45
!CENSUS 1830Denn Twp, Lycoming County, Pennsylvania, page 285 Jacob Shanermales2 age 5-10, 2 age 10-15, 1 age 50-60 females1 under 5, 2 age 5-10, 1 age 40-50
!CENSUS 1850 Wolf Twp, Lycoming County, Pennsylvania page 440a-440b, Aug 24, 1850 Jacob Shaner 74 M W Germany Laborer Mary68 F W Germany
!CENSUS 1860 Wolf Twp, Lycoming County, Pennsylvania, page 945, taken June 13, 1860 Jacob Shaner 84 M W Germany Mary73 FW Pennsylvania
I also posted a county history piece and an obituary for Philip Shaner and an obituary for his wife Belinda Jackson that may help.
There is an interesting contradiction in one of them.It says he came over with parents when 19 years old, but later talks about him being in Philedelphia in at age 17.I think he was younger, maybe 9, when he came over.I believe John and Adam are his brothers and the second Adam in 1810 is the father.Mostly theory at this point, but hopefully some day I will find out for sure.