Claim: Joseph Newark (1799–1881) moved to San Francisco in 1852 and opened a dry goods store together with his business partner Joseph Brandenstein, he later moved to Los Angeles and established Congregation B'nai B'rith, the city's oldest Orthodox synagogue.
Evidence: Joseph Newmark (1799–1881) was a Prussian-born immigrant to the United States who co-founded B'nai Jeshurun in New York City and Congregation B'nai B'rith, now known as the Wilshire Boulevard Temple, the oldest synagogue in Los Angeles. He moved to San Francisco in 1852 where he briefly partnered with Joseph Brandenstein and established a dry goods store before moving to Los Angeles in September 1854. He established Congregation B'nai B'rith, the oldest synagogue in Los Angeles now known as the Wilshire Boulevard Temple, which began as an Orthodox synagogue.