[4] At age 17, he married Chaya Chava, the daughter of Shlomo Elimelech of Tarlow, granddaughter of the Otrovtzer Rav, Rabbi Liebish Zucker.

[2] In 1913, Rosenberg immigrated to Canada, where he became the spiritual leader of Toronto's Beth Jacob Congregation, which was founded in 1899 by a group of Polish-born Jews.

[5] During his close to six years in the city, Rosenberg founded the Eitz Chaim Talmud Torah on D'Arcy Street, in a building which once was an Italian club.

[7] Among Rosenberg's notable descendants are Shlomo-Yisrael Ben-Meir, Meir Yehoshua Magnes, Mordecai Richler and Rabbi Michael Rosensweig.

Besides numerous halakhic works, his writing ranged from an anthology of the sciences (Sefer ha-Berit), which was a source of scientific knowledge for Jews unfamiliar with European languages,[9] to a Hebrew translation of the Zohar, which he hoped would revive interest in Kabbalah.