Interesting that the article didn't address the effect of intact families on the education success of children. I noticed race wasn't mentioned either.
Oldplayer
So? My state, Georgia, usually ranks right down there at the bottom but their rank was artificially inflated due to the massive cheating scandal in the Atlanta public school system. It will regain its miserable rating next time they do the survey. Yet in spite of that they always field a great bunch of local students for Georgia Tech and Emory, 2 schools that are among the nation's best. Those kids excel in spite of the schools, not because of them. I suspect your situation is similar and I noticed you mentioned factors other than a great school system that contributed to their success.
Yes, and if you would look at the average SAT scores by state you would find that your kids were not that unusual for OK. OK has horrible schools with high average SAT scores...hmmmm.