Barmore / Knox

I am a descendant of Roswell Marshall Barmore's wife Hannah Erwin's parents.In the book, "The descendants of John Spears Erwin"the spelling is Roswell.Roswell and Hannah ERwin were married 28 Oct 1851.Hannah was born 6 April 1833.Do you have the birth/Death date for Roswell? The birth date I have for him is 1803. That couldn't be right.His father Henry Barmore was born about 1800. The death date I have for him is Apr 1916 in Cherakee, KS.Do you know if this is correct?Henry's wife was Laura(Lora) KNOX.She was born in Augusta Oneida NY in 26 June 1807. I have information on her parents if you would like it. Thank you.Marilyn