I am from the South originally, so I like your association.
The middle name will be a family/surname name--a strong contender is Ambler. It's kind of a tradition in our family to use a family surname as a mn. The middle name for our first son (Peter Jeffries) was my grandmother's maiden name and this time the middle name will come from my wife's side. I'm not completely sold yet on Conrad Ambler as a combo because of the repeated -a sounds, but overall I like it.