Bay Curious listener Ron Hewlett heard a rumor that several alleys in San Francisco's South of Market neighborhood are named for Gold Rush era sex workers. He wondered if it was true. Plus, why does San Francisco stamp the names of streets into the sidewalks? There's a lot in a name, folks!

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Reported by Katrina Schwartz. Bay Curious is made by Olivia Allen-Price, Katrina Schwartz, Sebastian Miño-Bucheli and Brendan Willard. Additional support from Jessica Placzek, Kyana Moghadam, Paul Lancour, Suzie Racho, Carly Severn, Lina Blanco, Ethan Lindsey, Vinnee Tong and Jenny Pritchett.

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