Moshe ben Chaim Rosenstein was born in Užventis

Užventis

Užventis is a city in the Kelmė district municipality, Lithuania. It is located north-west of Kelmė. River Venta flows through the city....

, Lithuania

Lithuania

Lithuania , officially the Republic of Lithuania is a country in Northern Europe, the biggest of the three Baltic states. It is situated along the southeastern shore of the Baltic Sea, whereby to the west lie Sweden and Denmark...

 in 1880 and died on 10 April 1941 (13 Nissan 5701).

He studied in the Telzer Yeshiva in Lithuania initially under Eliezer Gordon

Eliezer Gordon

Eliezer Gordon also known as Reb Laizer Telzer, served as the Rabbi and Rosh Yeshiva of Telz, Lithuania.-Early years:...

 and Shimon Shkop

Shimon Shkop

Shimon Yehuda Hakohen Shkop was a rosh yeshiva in the Yeshiva Shaar Hatorah and in the Telshe yeshiva and a renowned Talmudic scholar. He was born in Torez in 1860. At the age of twelve he went to study in the Mir yeshiva, and at fifteen he went to Volozhin yeshiva where he studied six years...

, and later at the Kelme Talmud Torah in Lithuania, where he was a pupil of Simcha Zissel Ziv

Simcha Zissel Ziv

Rabbi Simcha Zissel Ziv Broida , also known as the Alter of Kelm , was one of the foremost students of Rabbi Yisrael Salanter and one of the early leaders of the Musar movement...

 (Broide), Rabbi Nochum Zev Ziv, Rabbi Tzvi Broide, and Yeruchim Leibowitz of the Mirrer Yeshiva.

He later became the Mashgiach Ruchani

Mashgiach ruchani

Mashgiach ruchani or mashgiach for short, means a spiritual supervisor or guide. It is a title which usually refers to a rabbi who has an official position within a yeshiva and is responsible for the non-academic areas of yeshiva students' lives.The position of mashgiach ruchani arose with the...

 (spiritual mentor) in the Lomza Yeshiva, Poland

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

 together with the Rosh Yeshiva Yechiel Michel Gordon. He wrote two books of Mussar

Musar literature

Musar literature is the term used for didactic Jewish ethical literature which describes virtues and vices and the path towards perfection in a methodical way.- Definition of Musar literature :...

, “Yesodei Hada’as” and “Ahavas Meishorim” which were reprinted in 2002 after being out of print for many years.

Rosenstein had a sister Sarah that married Rabbi Chaim Tzvi Herson who became the Chief Rabbi of Winnipeg

Winnipeg

Winnipeg is the capital and largest city of Manitoba, Canada, and is the primary municipality of the Winnipeg Capital Region, with more than half of Manitoba's population. It is located near the longitudinal centre of North America, at the confluence of the Red and Assiniboine Rivers .The name...

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, a sister, Masha Tabatznik, and a brother Velva Rosenstein who married Pesha Katz. R. Velva's great grandson, Hugh Raichlin of South Africa, reprinted the books of Mussar mentioned above. Rosenstein had a wife, two daughters and a son and several grandchildren all of whom perished in the Holocaust.