Hi! I'm part of the Aaron P. Davis lineage as well.
Contact me at:firstname.lastname@example.org
We have much the same information on Aaron's children. I have a huge file on the Davis's but Aaron P. has been elusive. He died somewhere in the Portsmouth, Ohio area, having gone back there from Muscatine, presumably to visit family or friends. He had also owned land back there at one time. Unable to find an obit thus far.
Look forward to hearing from you.