You might want to keep that DC, but if you want to recoup your money, you might be able to send it back, their error. On the other hand, it's still a great piece of family documentation.

If the baby died while teething, she probably was not taking in enough nourishment. Another reason could be the teeth did not come in straight and pushed against a nerve resulting in infection. Way back in those days they just put a towel on people's head and hoped they got better. Poor baby.