You guys are making me come out of the woods on this one!
Robert johnstone was the pro and Presidio for a number of years in the early 1900's, he was not even around when the course was built and would later move up to Seattle and work at SCC I think. I am a little rusty on this, but I can say with certainty that he did not design the original course at Presidio.
I have a name popping up in my head, but i need to verify it first.
Tully