Bible question

I am writing a paper for university and have a question about the Bible.

Does anyone know what happened to Mary and Joseph, or more specifically, their relationship with Jesus. Did they die before him, or did they loose contact, if so how long before.

By "him," I assume you mean Jesus. If I recall correctly, Joseph died before he was crucified or started his ministry. Mary (both Mary's actually, I think) were there for the crucifixion.
EDIT: "He is last mentioned in connection with the journey to Jerusalem, when Jesus was twelve years old. It is probable that Joseph died before Jesus entered on his public ministry, because only Mary was present at the marriage feast in Cana of Galilee; and he is not mentioned at the crucifixion along with Mary (John 19:25)." http://en.wikipedia.org/wiki/Saint_Joseph

[quote="Barmaley"]He is last mentioned in connection with the journey to Jerusalem, when Jesus was twelve years old. It is probable that Joseph died before Jesus entered on his public ministry,[quote]

I asked my "bible' knowledgable friend and she confirms.