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Eric,
The dive shop you elude to would be the Bamboo Reef. It was founded around the early 1960s by Al Giddings and Leroy French, but was sold to an eastern transplant many years ago.
The "Eastern Transplant" is Sal Zammitti still diving and mentoring others. A great guy. He has a long history of serving the Bay area Dive community. He has personally certified many divers. His daughter Karen currently manages Bamboo Reef. Sal is still there many days a week; servicing regulators and helping out.
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update
Leroy French...from a knowledgeable friend :
The shop was closed and Leroy left the country without notice due to some legal issues he had.