Same for San Francisco, Most of the earlier settlers were from Hong Kong, Macau, Guangdong, All ‘Cantonese’ speaking people. Also, a lot of people were from Shanghai so there was a group who also spoke Shanghainese. Probably other languages were spoken also but they were not as prominent as Cantonese.
Oh! Interesting historical info - There is/was a phrase/verb in the San Francisco Bay Area (They got ‘Shanghaid’) originally meaning to be kidnapped to work on a ship bound for Shanghai, China. Now it generally means they got kidnapped.
Back in the wild ‘Barbary Coast’ days (1849-52) it was NOT safe to be down in the ports when the tide turned because most able-bodied seamen jumped ship and ran off to the goldfields so the captains were short-handed when they were ready to set sail. So they would kidnap likely-looking men, usually drunk, tie them up and stash them below deck until they were beyond swimming distance, then put them to work on deck. Back then the trading ships went between Shanghai China, San Francisco California, and Lima Peru. San Francisco in 1849 didn’t have any infrastructure at that time so everything was imported from China or Peru.
My grandfather spoke Cantonese but we never learned it. He was also fluent in Portuguese, Spanish, and English.
What’s weird is I can understand French spoken in Quebec but I don’t speak French. I never learned French. No one spoke French in my neighborhood. (Yea, I don’t know how that works.) I also speak California ‘Spanglish’. Tagalog, Gaelic, and I’ve been learning Korean for over a year now. (So that I don’t have to wait for subtitles.)_ Even though I grew up in ‘little Azores’, none of us kids spoke Portuguese, just Spanish or English outside the house.