kov-doc-#2:

Birth certificate for Barukh Baumslag who was born in Dvinsk in
1899 to Yechiel Baumshlak of Polotzk ( now in Belarus) and his wife Chaia Leah, daughter of Kalman Geverson

 

kov-doc-#3:

A 1916 letter of birth information  for Barukh Baumslag who was
born in Dvinsk in 1899 to Yechiel Baumshlak of Polotzk ( now in
Belarus) and his wife Chaia Leah, daughter of Kalman Geverson.

kov-doc-#4:

Passport of Dr. Baruch Baumslag who was born in Dvinsk in 1899 and lived in Kovno in 1931