Perhaps Mama Burnham, seeing the destruction wrought by the Matrix Bot invaders, decided to stash away some folks so that the human species would not become extinct? Could have been her first attempt to change the outcome. Think about it, history shows the entire area being vaporized by atomic bombs during WW3. It they were 'taken' just before the bombs detonate, history would not be the wiser and they could start anew in a far off location. The human species endures regardless of the Matrix 'Bots. Thoughts?