The formal beginning of the Agudath Achim or the United Hebrew Brethern Congregation was on Rideau Street at number 417 in 1902. The founding trustees of Abraham Kert, trader and traveller, Moses Rudman (Roodman) peddler, Myer Held, peddler, Elias Pullan, merchant, Issac Noe, carpenter, Michael Adelman, peddler, Moses Merson, upholsterer committed the congregation to a $3000 mortgage for the purchase and conversion of a building at 417 Rideau Street. The cornerstone for a new synagogue at 417 Rideau was laid on July 1st, l912. On January 19, 1913 a new synagogue, designed by Burgess & Coyle with a seating capacity for 400, was opened. The Building Committee consisted of Israel Sugarman, Chairman, Henry Finkelstein, President, 1912, Araham L. Florence, President, l913 and Kastrel Cohen, Secretary. The synagogue was extended in 1928. In 1955-1956, Congregation Agudath Achim amalgamated with Congregation Adath Jeshurun to form Congregation Beth Shalom, and their new synagogue was dedicated in 1957. Rabbi Joseph D. Berger served the Congregation from 1902 to 1927. When the Congregation joined the Associated Synagogues of Ottawa the shared Rabbis were Abraham H. Freedman, William Margolis, Oscar Z. Fasman, Emanuel Lifschutz and Simon L. Eckstein. Religious functionaries included Rev. Louis Doctor, Cantor Jacob Dorskind, Rabbi Max Maser, Rabbi Aaron Weiss, Rev. Hyman Gertler, and Rev. Jacob Y. Cement.