The political events in Russia in the very beginning of the 20th century gave way to massive numbers of Eastern European and Yiddish-speaking Jews coming to Canada. In Québec City, the Jewish population for the first time reached nearly 400 people. These new arrivals were mostly poor and set themselves up in small businesses or became traveling salesmen. They were also in sharp contrast with the Jews of British origin who already lived in the city. Among these new arrivals was a Romanian Jew named
Maurice Pollack, who founded a store in 1906 that would become one of the most important in the city. On rue Saint-Joseph, where many of them lived, the Jewish merchants offered credit and attracted a less wealthy clientele from the country. Additionally, the Russian Jews brought with them new ideas and fought for socialism. One of Québec's main labour leaders,
Lea Roback, grew up on the Côte de Beauport in early 1900s. A number of Jewish feminists can be found, including
Sadie Lazarovitz who graduated from McGill University in 1928. She was amongst the vanguard of women to obtain a law degree.
This period is rich in events of all sorts, including some that had repercussions beyond the Jewish community of Québec City. In 1910, the notary Plamondon gave an anti-semitic speech at the church in Saint-Roch and the hoodlums broke windows all down rue Saint-Joseph. Outraged, two Jewish merchants from Québec City sued the notary for defamation and, after long legal proceedings, won their case in 1914.
The Plamondon case constituted a tremendous victory for Canadian Jews. A Jewish deputy from Montréal,
Peter Bercovitch, sat in the Assemblée législative from 1916 to 1938, where he proposed progressive social measures. Meanwhile, the Jews in Québec City wanted to build a
synagogue in the upper town that would represent their degree of advancement in society and demonstrate the wealth of their religious traditions. They finally succeeded after numerous obstacles, but on the eve of its inauguration, in May 1944, arson destroyed the building and disturbed the complacency of the Quebec City community.