If you have all the wires unhooked from that run do a continuty test. Note this only works if some sort of load is on that circuit. For older homes there is probibly too many things pluged in so this test will work.
You find your 1 nut. and 2 hots (1 phase) that have continuty together. If I have everything apart and am checking things I try to look to see too many have continuty together. Meaning a misswire with 3 hots for 1 nut.(1 ph), nutrals wires tied to ground, 2 nuts. tied together.
Some things should make sence like wire sizes of a network tend to be the same (but no garantees). Networks need to be in the same raceway.
Once you figure it out tape them together.
Try to figure out your networks before you move things around.
Tom
