Re: Daniel Allison/Benjamin Allison connection?
Daniel & Benjamin Allison were brothers, their father was John Allison III.
This information come from a document written by L. A. Allison in 1941 that was copied from a book by Leonard Allison Morrison, published in Boston in 1893.
You may also want to check with the Probate Court in Gallia County County, Ohio or the Genealogy Society there for a record of Benjamin's Allison widow Rachel and his brother Daniel Allison being appointed adminstrator of his children after his death in 1807. Benjamin also had a son named Benjamin Allison Jr.