What I have in my database is that John McKeown Gladney was the son of Jonas Reep and Rachel Gladney. Nancy Jane Gladney was the daughter of Edward B Gladney and Elizabeth P Hamilton.
Drew Co marriage record
Nancy Robertson, 33 (1837) and John Reap, 23 (1847)
3 Nov 1870
She applied for a pension in Arkansas as N J Reep in Bradley County (Image 644 on FamilySearch, you can look at Arkansas Confederate Pension records online). her date of birth is on the application. It was signed in 1915. A J Yarbrough of Cleveland Co attested he had known J S Robinson for 6 or 7 years.
I'm looking to see what else I have on the families.