Baruch Leib Rosowsky, was a famous cantor of the Great Choral Synagogue in Riga and a composer of religious music in Riga, at the time a city in Imperial Russia, it is likely that Rosowsky's family is related to the Rasofsky branch of which person who was an American professional boxer, and became a world champion in three weight divisions and was a decorated veteran of World War II?
Baruch Leib Rosowsky Baruch Leib Rosowsky (Latvian: "Baruhs Leibs Rozovskis" , 1841  – 1919) was a famous cantor of the Great Choral Synagogue in Riga and a composer of religious music in Riga, at the time a city in Imperial Russia. Rosowsky's time of death was during the Latvian War of Independence. His son was also a famous cantor, named Solomon Rosowsky. It is likely that Rosowsky's family is related to the Rasofsky branch of the Barney Ross family.
Shlomo Shleifer Shloime Mikhelevich (Solomon Mikhailovich) Shleifer was born on December 23, 1889 in Moscow. His father was the rabbi of Alexandria, a town near Kherson. During the First World War, the Shlifer family moved to Moscow, where Rabbi Shleifer worked as a bookkeeper until 1943. He also served as the secretary of the Choral Synagogue. In 1941, he attempted to register for military service, but was turned down because of his age.