The only other evidence of Fruitvale School's pet parade is this note in the Oakland Tribune from April 9, 1935 describing that year's Pet Parade.
Fruitvale School wasn't the only place for Oakland kids to parade with their pets.
There was at least one other pet parade in the city in 1935, as described in the Oakland Tribune on August 8, 1935.
There was also an annual pet parade sponsored by the Fruitvale Businessmen's Association for several years starting in 1940. Perhaps this was inspired by the popularity of the school's parade.