The Blessed Virgin Mary, Jesus and Saint Luke

Mary the mother of Jesus is well known to the world.  From where do we get this knowledge.  It comes mainly from the Gospel of Saint Luke.  He tells us that he interviewed those who were from the beginning witnesses of the things reported to have happened.  Historcally, we are sure that Mary the mother of Jesus was alive at the time of Luke.  She was accessible and therefore, she could be the source of the very intimate and detailed information recorded in the first and subsequent chapters of Luke.