In a flash photo my child does not have the typical red eye, my other child does. the child without the red eye, his eyes just appear normal, not glowing or white,is this a symptom of something serious like eye cancer?

Red-eye with flash depends almost entirely on the angle of the flash and where the person's eyes are looking at the time. This is very unlikely to have anything to do with cancer or any other eye health problem. And it would be exceedingly unlikely to have such a health problem in both eyes, especially if the child seems to have normal vision. But discuss with pediatrician at next routine visit.