This is actually a request from my mother, who's looking for fresh yeast (not dried). Apparently, she remembers eating it as a child, spreading it on graham crackers!
She's looked at Henry's, Trader Joes, Whole Foods, and Bristol Farms. The latter apparently does carry it, but only in the fall months.
Looking it up online, it appears Fleischmann's is one producer.
Any help is appreciated. Anyplace in San Diego county is doable for her.