My latest book, "San Francisco's Treasure Island" will be in stores on May 14th and I too had a hard time finding photos of the naval base period. My book covers the entire history of the island from construction until today. It took a lot of searching but in the end I was able to come up with some great images of the base to use. I suggest checking out the San Francisco Library Photo Center for starters. In addition, the National Archives branch in San Bruno has some great images as well. What sort of project are you working on?
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