It sounds to me like your relative has everything well in hand.Looks good for Daniel to be f/o Absalom. Daniel to IN aft 1830, hence not on IN census. Land Patent 1833 "of Butler Co OH" indicates to me Daniel was a recent arrival in IN, so possibly Absalom b OH.
What I don't understand...if Daniel d 1836, why is grdnship 1841?Is this when stepmom died?
I'm assuming probate records mention Daniel's wives, and are you sure you have the right one??? I realize there were other BEAVERs in Butler Co who may have also had a son Daniel. Butler Co OH Marriages BEAVER 7-29-1823 Daniel - Christiana BOWER 2-5-1824 Daniel - Catherine BALDWIN