Gepetto helped build the wardrobe- perhaps he hid his son there. The newspaper article about Emma as a baby said she was found by a 7 year old boy.
Actually the byline of the newspaper article said, “A local boy discovers a newborn wrapped in a blanket…” Well, the phrase “a local boy” would be used only if the boy is already known to the local community. Otherwise, what is he local to? That’s my basis why I don’t buy the theory that August is Pinocchio, or that Pinocchio was secretly sent through the wardrobe with Emma.
I don’t think August is Baelfire either, because the incident with Rumple took place centuries ago. Rumple would have had to made Baelfire immortal or something.