Aware of the reasons for both. As for Georgia, however, it's interesting how the state never voted Republican during Reconstruction. It and Texas were the only Southern states to remain loyally Democratic during that period. I am not sure exactly why. Perhaps the black population in Georgia was lower than in the other states.
The disenfranchisement of blacks in Georgia occurred earlier than in any other former Confederate state, and the Unionist white support, although not entirely absent like in SC, FL, MS and LA, was never enough to combine with those blacks who could vote.
As for Texas, it did not vote in 1868 as it had not been readmitted to the Union and was always expanding beyond its original Deep Southern affinities, moving into regions where black labor was neither needed nor remotely wanted. Excluding Gillespie and Kendall Counties, and sometimes a few others German counties, however, its voters remained loyally Democratic until the 1950s (except for the Hoovercrat bolt).