Thanks Jan and good to hear from you! He does not appear to be one of "my" Bush line but I still must wonder how he came to be named "Alexander Graham" Bush. It doesn't seem that common a first AND middle name. Lois dug up the following for a Alex. G. who appears to be this one.
1850 Clark Co., KY census: Jonathan Bush 70 Francis A.P. Bush 36 Angeline Bush 28 Filman Bush 8 Nancy A. Bush 5 Alexander G. Bush 3 John R. Bush 43
I think that the above Jonathan is the son of John and grandson of Phillip Bush and Mary Bryan.
1860 Madison Co., KY census: Permelia Gibbs 75 Joel W. Gibbs 27 Anne Bush 16 Alexander G. Bush 10 Diannah Bush 7
The Bush DNA project does place "my" Bush line in the same Group E as this but with 2-3 mismatched markers. Sooo. - any guess from you is welcomed!