Yesterday I was reading through a set of old Austrian and German Alpine Clubs journals that I recently purchased. I was pleasantly surprised to see in Jahrbuch des Oesterreichen Alpen-Vereins, Band 92, 1967 ("Journal of the Austrian Alpine Club, Volume 92, 1967") an the article Berge und Bergsteigen in den Vereingigten Staaten von Nordamerika ("Mountains and Mountain Climbing in the United States of America") by Richard Hechtel which mentions climbing at the Pinnacles.
Translation the section to English:
A nice and sought-after climbing area is the Pinnacles south of Hollister which is only a two and a half hour drive from San Francisco. There are a hundred or more free-standing pinnacles that are 25-50 meters high and have climbs of every difficulty. The rock, a volcanic breccia, is relatively strong, as long as one stays on the many travelled routes.
Dr. Richard Hechtel lived in Redwood City at the time of the publication. Is anyone aware of an earlier foreign country mention of climbing in the Pinnacles?