We need some collaboration in finding his parental lineage and date of birth etc. we did find him mentioned by his sister who received telegram of his death in Ashtabula, Ohio. He apparently moved west after the war. It mentions 4 brothers and 3 sisters surviving him. It mentions no wife or children. The spelling could be Riddell or some variant of original.
Note: Is there a copy of this book available: “The 106th New York Volunteers: A Civil War Heritage.” By Charles Todd Creekman