Some professionals say its possible and others say it isn't. Those that say it is say that while the person is in an abuse situation imagining their self out of the situation and imagining the abuse is happening to another person the names are from those that they have contact with in their lives at that time. Children can't imagine what they don't have contact with by way of their real life, TV, music, movies and so on. So the names always come from who is in their lives. you said the name is "The Teacher" so look at all the teachers in your life and match what you already know about that memory by way of what audio memories (voices) keep replaying. That will give you a starting point for figuring out this piece of memory. The "age" is probably the age of that teacher this abuse memory was stored as in the unconscious level. The content regardless of the age of the piece of memory is always the memory of the smell, taste, sight, sound touch (how the person was touched or what they touched) and or emotions the person felt during that situation. So to figure out the memory content - look at all the teachers in you life that were the age of the memory piece. That will give you the time frame of when this memory was created and possibly who your abuser was at that time.