This is people you often find at the numerous educational institutions that you can find all over the world. It is a diverse group. Some are unknown and barely educated themselves. They have been placed to teach in rural communities were the educational standards makes a person that is able to read a potential instructor. Most educators appearing in the CoC game tend have a college degree of some sort. This could be everything from a simple bachelor degree to a full doctoral degree. You find these educator at everything from grammar schools to well established colleges and universities.
Most educators spend most of their time teaching, but some especially at the higher educational institutions also do a lot of research and spend their time trying to make new scientific discoveries. For some, especially those trying to expand human knowledge in past times, reserach can lead to encounters with strange facts and bizzare anamolies that makes the scientific minded scholar doubting that humankind really live in a world of enlightment.