When Joseph and Mary presented Jesus in the temple as a baby who were the two people who witnessed it?

Joseph and Mary brought Jesus to the temple as an infant "after the custom of the law" (to dedicate Him to the Lord), and Jesus was found in the temple "sitting in the midst of the teachers, both listening to them and asking them questions" when He was twelve years old, when the family had gone to Jerusalem for the Passover. Both of these instances are recorded in Luke chapter 2.