Thor, I think you're right on the Ya-Hoo cakes. My clan always got the Collin St. cakes just out of regional preference, as we're more East than North Texan. Nowadays, Sherman is as close as Corsicana to where I am. Myself, between the two, I don't have a preference- both are good. I recall that at least one of each would show up around the house at some point during the holidays. Of course, my grandmother make an incredible fruitcake cookie called 'Russian Rocks' which has been pretty addictive. I'm sure the recipie is out there somewhere. Probably a Southern Living magazine concept.
Regards,
Rabbit.