Welcome aboard the RoadTrip America Forums!
First of all, congratulations on taking three days rather than just two for this RoadTrip. While you could get to Dallas safely in two, taking three will let you take some time to both attend to your daughter and enjoy some time off from driving. And I actually think your planned stops are much closer to evenly spaced than you're giving yourself credit for.
So what else can we tell you...? A few
examples of places to stop along the highway perhaps, or some quiet, lesser known attractions that are (more or less) on your way such as the
Mississippi Petrified Forest or the site where
Bonnie and Clyde got gunned down. We could also warn you about the nightmare that is
Atlanta traffic although the major problem seems to now be fixed and you shouldn't be going through at rush hour.
Anything else in particular you were hoping to find out?
AZBuck