The evidence linking Polly with her father, John is pretty circumstantial,
but I believe it is correct. Mostly based on places they lived.
The John Ballard family lived in Jackson Co., Indiana, and that is
where Polly was married. Other members of this same John Ballard family
later come to the same part of Keokuk Co., Iowa as Polly and Thomas Morgan.
Reuben Ballard's will also mentions a granddaughter Polly Ballard, but doesn't
say who her parents are. It probably might be this Polly.
The probability that Polly belongs in the John Ballard family was pointed
out by Dorothy Foubert.
shows the migration path of this Ballard family (Polly, her siblings
John, Philip, William, and Rebecca, her father John,
and her grandfather Reuben) across the United States.