At the age of 31, he was appointed rabbi of the town of
Raseiniai, a position he held for three years. He also was the dean of a yeshiva in the town that
Rabbi Nosson Tzvi Finkel of Slabodka was instrumental in founding. In 1913, he took the position of rabbi of
Khislavichi.
While Soloveichik was in New York City, his eldest son, Rabbi
Joseph B. Soloveitchik (known as Yosef Dov) was working on his PhD in philosophy at the
University of Berlin, which he completed in 1931. The following year, Yosef Dov moved to
Boston and became head of the Orthodox Jewish community there.
When Soloveichik died in 1941 at the age of 62, Yosef Dov was asked to fill his father's place.
His funeral at RIETS was attended by more than 4,000 mourners and he was eulogized by
Rabbi Moshe Rosen on behalf of the
Union of Orthodox Rabbis as well as his wife's cousin
Moshe Feinstein and other important rabbinic leaders.
Soloveichik's two younger sons were Rabbi
Ahron Soloveichik (1917–2001), who also taught at
RIETS, and Dr.
Samuel Soloveichik (1909–1967) who taught
chemistry at
Yeshiva College. He also had two daughters: Shulamit Soloveitchik Meiselman (1912–2009), and Dr. Anne Soloveitchik Gerber (1913-2011).