From looking for the names of the brothers of this ancestor - came up with a Nathan, Daniel and Ashbel, some of the sons of Phinehas Waller and Rhoda Taylor of CT.
The birth records are from familysearch.org - as are the birth records of their other children, not included here.
Also included are excerpts on this branch of the Waller line which can be read further on googlebooks.
I don't know if this is the correct ancestor you are searching for your friend, but this Ashbel was b. in CT and the text indicates he then moved to Oh which some of his brothers.
It appears that this Ashel has Revolutionary War Records on some pay sites.
Connecticut, Births and Christenings from familysearch.org
Nathan Wallers Male
birth 07 Mar 1753 CORNWALL TWP,LITCHFIELD,CT
father: Phineas Wallers
indexing project (batch) number: 7450374
Ashble Waller Male
birth 18 Oct 1759 CORNWALL TWP,LITCHFIELD,CT
father Phinehas Waller mother Phebe
Daniel Waller Male
birth 17 Mar 1760 birthplace: CORNWALL TWP,LITCHFIELD,CT
father Phinehas Waller mother Rhoda
Colonial and Revolutionary Families of Pennsylvania: Genealogical and Personal Memoirs, Volume 2: John Woolf Jordan, Wilfred Jordan
“PHINEAS WALLER son of Joseph Waller was born October 31 1717 at Litchfield Connecticut. In 1738 he was an original proprietor of Cornwall in the Housatonic Valley. He was Deacon successively of the First and Second churches of Cornwall. Later in life he removed with his family to the then Western country. His wife was Rhoda Taylor daughter of Nathan and Hannah Benedict Taylor who bore him five sons and five daughters. She died at the home of her eldest son Nathan at Oquago on the Susquehanna River in New York. The sons were Nathan, Levi , Ashbel, Daniel ,Joseph ,four of whom were Revolutionary soldiers.”
“Levi enlisted at eighteen and died in the service at Princeton New Jersey in 1778. Ashbel, a third brother served in the Second Regiment Connecticut Line and Daniel a fourth was in the Sixteenth Connecticut. These three with Joseph the youngest were all settled in the Wyoming Valley Pennsylvania prior to 1800. Three of them Ashbel, Joseph and Daniel passed on and settled in Western New York and Ohio.”
Revolutionary War Pension and Bounty-Land Warrant Application Files
NARA National Archives Catalog ID:300022
National Archives Catalog Title:
Case Files of Pension and Bounty-Land Warrant Applications Based on Revolutionary War Service, compiled ca. 1800 - ca. 1912, documenting the period ca. 1775 - ca. 1900
Veteran Surname:Waller Veteran Given Name: Ashbel
Pensioner Surname:Waller Pensioner Given Name: Jane
Service: Conn. Pension Number: W. 25861