The Red Douglah, which the name in itself is a complete contradiction based on Sara's definition, originated from Judy @ Pepperlover.com. I am guessing it accidentally crossed with something else and a red pod popped up. The Douglah seemed to be a very stable pepper from day 1, though never known at all outside Trinidad before 2007. I remember thinking how neat it is to see a brown pod with all kinds of bumps. Nowadays, every person has named every super hot in every color even though most have zero resemblance of the original strain shapewise. It's kind of silly. There is a red Douglah, Yellow Douglah, Orange Douglah, etc. etc. lol. With the case of the Red Douglah, Judy's pod shape was very close to the red I recall. It is possible to be a color mutation, but hard to say.
Chris