Curious geographic pattern in Bush's pardons

Is it just me, or has anyone noticed that there is a disproportionate pattern of pardons for people from former Confederate states in the pardons of out-going President George W. Bush?

The Associated Press reports today that Bush has pardoned 14 individuals. Of those individuals, only 5 people are from states or territories outside the Confederate South, Illinois, South Dakota, Missouri, California and Oklahoma. (Aside from the 14 pardoned individuals, 2 persons were given commuted sentences.)