Rod McLellan Company used to produce many quality plants when Rod himself was alive. They had great hybridizers like Bob Jones, Frank Fordyce and Herb Hagers working there during their heydays. In addition to the nursery, they used to have a stall at the San Francisco flower market (not sure if they still have this). They sold the property in South San Francisco in the 1990s and made their Aromas/Watsonville nursery (which they bought many years earlier) the headquarter. Around that time, they started to strictly produce plants more suited for the general public and no longer cater to orchid hobbyists. Taisuco bought the business about 7-8 yrs ago and has kept it pretty much the same since the relocation.
Bob Jones bought a lot of Rod McLellan Company's breeding stock after he left and started Mount Madonna Orchids. In the early 1980s, Dr. Mustafa bought Mount Madonna Orchids' collection and started A&P Orchids.
If you're looking for a particular old clone, you might want to check with A&P Orchids or ask other private collectors. Good luck!