Most Helpful Girl
It depends on the place. In the 19th century, sex outside of marriage was considered as breaking the law and both of them can be stoned. It also depends on wither or not how much of it do you want it to be fiction or realistic. If realistic, then read up about such stories. Religion also was extreme back then as well.
Most Helpful Guy
No, how is this pedophilia in anyway? Saying that you did your research and people were in those relationships at that age during that time, then your story would be considered historically accurate and not 'perverted.' Unless you plan on making this story an erotica, then it's completely fine