It is a possibility that Joseph of Nazareth and Joseph of Arimathea are one and the same, since the Nazarene Joseph (who was actually born in Bethlehem) disappeared soon after the birth. He may well have been trying to evade the CSA, changed his name to 'of Arimathea' by deed poll and reappeared later in the gospels under that name so that he didn�t have to provide Mary with maintenance for what was effectively his foster child.
He may not have been married either � would you marry a woman who produced a child incarnate of God and claimed to be a virgin?? It is suggested that they were affianced, but of course it is possible that he reappeared once his son won Fame Academy, if only to get in on the action and seek a management role.
One small fact that may disprove this though is that J of A was an educated person with considerable wealth and influence (enough to coerce Pilate into releasing the body of Jesus). J of N was a craftsman of little means. We often assume he was a carpenter, but it is possible he could have been a scribe later in life leading to ..."connections".