I removed the hallway ceiling fixture to investigate why there were three wires going to it. The third wire (red) provides power for a closet light.
I have uploaded the latest revised wiring diagram to the following address:
It is my belief, and correct me if I'm wrong, that if I were to do the following modifications in the junction box in the hallway:
- Remove the splice on the two red wires.
- Connect the un-spliced red wire, going to the closet light, to the hot.
- Connect the remaining un-spliced red wire, going to the family room, to the common.
I will have the necessary common and there would be an un-switched hot to the closet light. Most importantly I won't have to crawl around in the attic. I have my fingers crossed.