Thank you everyone for the replies and an education in flight tracking. It certainly seems that Treadigraph and Big Eric are on the money, although I can't see a way of playing back ADSBExchange to follow this flight after the event.
I did wonder about an AN-12 after Council Van's post; but as has been pointed out, they were going the other way.
Those early model C-130s must be responsible for a good amount of hearing loss.