Tim Owen is still dealing. I messaged him the other day and he said he largely sells to other dealers at coin fairs. So he may have sold to Steve Hill who then passed it on to CC, but hard to tell if there are no clues on the tickets.
Tim's tickets seem to come up fairly frequently and generally on decent pieces. Again, Rob is likely to know how long he's been dealing. More than 20 years at least, surely.
Oh, and Gary has updated the article. This (I believe) is the latest (#11) Additional Coin Tickets Version 11