The following is from information collected by John Addis, of Beaverton OR, which I found in the Uniontown PA (Fayette Cty.) library:
John R. Addis (b. 3/25/1819), first married Elleszan Doyle on 3/30/1843; they had7 children. He then married Eliza J. McPeters on 9/7/1865, and their children were May B. (b. ca 1867) and Ellen A.(b. ca 1868).
Could Ellen A. be the Allie you're looking for?
John R. Addis's father was John Addis (b. 1782), who married Mary Rossel. He died in Ohio in 1863. His grandfather was Jonathan, who was born ca 1760, probably in Bucks Cty, PA, and who apparently died in Ohio in 1850.