With some detective work, I figured out the characters involved:
H1AF-deadmansix
F1AF-FatherTed
K1AF-C-Los
KHH_Mrogue
FPF-TobinDax
All bids cleared, PP returned, we should be good to go now. Cleaned the db while I was at it.
I have just put up the new online campaign interface (OCI) which has a number of features to reduce the incidence of or hopefully eliminate this kind of trouble.