Hi. That IS my John Wortman. I have not been able to find an exact birth year as the records conflict - the censuses seem to point to 1849 or 1850 and his Civil War Pension file indicates 1845! I would say 1851 is not out of the realm of possiblility. John and Anna Ballard are indeed his parents.
Would it be possible to obtain a copy (digital or otherwise) of this handwritten family history that your mother-in-law has?I would love to see it. Also, are you or her related to John?I will try to email you privately as well.