John Milner Moran married Amanda Arena Roberts, and I believe this is the family you found in Pike County, AR census. They were just one of the Moran families who settled in Montgomery and Pike County, AR.
My David Isaiah Moran who married Nancy Lightsey is John Milner's nephew. If you are researching the Moran side, perhaps I can help, as I was a Moran.
My E-Mail is: firstname.lastname@example.org
Brenda (Moran) Shultz