WHO IS THE CRYING CHILD?!?

Hey guys my official theory is that the crying child’s name is Gregory . Wondering how I got to that conclusion? Well if the idea is that the wife took over after Aftons “official” demise and she became aware of his research with the animatronics and found out she could recreate her family and she started with the little boy why give him a whole new name SO my guess is that his name is Gregory tadaaaaa