I think it’s interesting that Mr. Gold knew that Emma was in the foster care system. As far as I could tell the only person Emma told about her early childhood was Henry. She told him that her parents abandoned her on the side of the freeway and that she spent three years with a foster family who gave her up when they were able to have kids of their own and then she was put into the system. I’m assuming that Regina was able to get that information when she got the details on Emma’s background but it doesn’t explain how Mr. Gold would know anything about Emma’s childhood. In the Cinderella episode, when he asks Emma to help him find Ashley so he doesn’t have to have Ashley arrested and the baby put in the system he tells Emma that he knows she wouldn’t want that for the baby since she knows what the system was like since she spent time in foster care. Back in FTL all Rumple seemed to know was that Snow and PC’s daughter’s name was Emma and that on her 28th birthday she would return to be the savior who would break the curse. But for all Mr. Gold knows she could have been found as an infant and immediately adopted by parents. It seems to me that Mr. Gold had somehow been keeping tabs on Emma throughout her life and that he was very aware of exactly who Henry was when he brought him to Regina. Whether he was able to predict what Emma’s life was going to be like or whether he was actually able to follow her life outside of Storybrooke either himself or with the help of someone else (his son, AWB??) I don’t know. So did Mr. Gold actually bring Emma to Regina or did someone else bring Emma into Storybrooke to Mr. Gold who then gave him to Regina??