I have a few Ira's in my line. They are from NC, then MO, and eventually CO.
I had a great grand uncle IRA Abernathy. Also, my GREAT great grandfather was named Jacob IRA Abernathy. His father's name was James Marion Abernathy. I Believe James had a brother named IRA.
A James Abernathy age 17 is listed on the 1850 Wayne County, MO census with (presumably) father Frederick Abernathy age 58. Ira age 35 is listed further down as head of household with wife Rachel, 4 kids, and a laborer named Coalman Abernathy. Frederick, James, and Ira (from the 1850 census) are all from NC.
I haven't been able to push back any further than Frederick. Are any of these Iras showing up on your database?