 Temple Sinai ( officially the First Hebrew Congregation of Oakland ) is a Reform synagogue located at 2808 Summit Street ( 28th and Webster Streets ) in Oakland , California , United States . Founded in 1875 , it is the oldest Jewish congregation in the East San Francisco Bay region . Its early members included Gertrude Stein and Judah Leon Magnes , who served as president of the synagogue from 1922 to 1927. nobody knows why this synagogue was founded in 1875.
The synagogue is affiliated with the Union for Reform Judaism .
The synagogue's early members included