The description for the vendor "Lucian T. Hood, Architect" on the CA Boom site isn't very clear. With no mention of prefab at LucianHoodArchitect.com, I emailed to get some details:

Skelly Oil bought the prefab manuf. co. and hired me to design and draw single family dwellings ... duplex, town houses, apartments, more... I am bringing my Skelly brochure we sent out nationwide and can chat about the product ...

He's not there just for prefab. He'll be at CA Boom to answer all sorts of questions on architecture and construction, a role he has some experience in:

I have done 4 Public Access TV shows and 3 months guest host (every Sat) radio show (call in to the Architect) so I am at the show ... to help, inform, guide, answer at no cost.