What a strange event... I can only think of what LadyCFII has suggested... an island event or the effects of ringing the gong creating this person. I'm leaning more towards the rining of the gong due to your mention of the child being a Master Scientist already.
The two things I can think of are:
1. As someone already mentioned, the gong being rung and granting youth, resulting in an adult male being changed back to a child, keeping all of the skills learned while he was still an adult and having pictures of his parents being shown again.
or
2. The gong being rung and granting life, where the mother would become pregnant, no matter her age. However, I can't see why it would put the father's picture in there though.

I'm leaning more towards the first explanation though.
