>>815741

Sergey's father was Mikhail Israilevich Brin and is a math prof in Maryland.

His grandfather is Israil Abramovich Brin of Moscow also a math/physics prof.

You see the thing that looks like a middlename is actually a patronymic. So the great grandad is Abram. I found something interesting which may or may not be connected to the family. Israil was born in 1919.

In 1938 a guy named Grigoriy Abramovich Brin was shot in Saratov as an agitator and a spy. He was later found innocent. Welcome to the Soviet justice system. In any case this could possibly have been an older brother, however since he came from Chernigiv in the Ukrainian Soviet Socialist Republic, who knows. Need more digging.

>>816541

Israil Abramovich Brin, Sergey's grandfather, worked in the Stalingrad Aviation Factory during the war. And he was born in Saratov which makes it more likely that Grigoriy really was an older brother.

>>816669

Some English language genealogy for Brin

https:// www.geni.com/people/Abram-Kolmanovsky/6000000005932829392

It's all linked so I started with Israel Abramovich Brin's father. Note how Israel took the mother's surname. Jews in the Russian empire did this sometimes for some reason. Probably you should ask a genealogy expert about that.

Two people with the surname Kolmaovskiy were shot at Babi Yar in Ukraine

But now it gets very interesting. His great grandmother Rachil Israilevna Katsina was a microbiologist born in 1886. In 1914 she was living in Germany where the USA invaded and taken prisoner and interned in the USA. While there she joined the Communist Party of the USA, travelled to CHICAGO and studied microbiology at the University of Chicago. In 1921 she returned to Russia.

Interesting note: Aleister Crowley was in the USA from 1914 to 1919. Wonder if they ever met…

The genealogy info came from here which is in Russian

http:// www.ruscalifornia.com/kaleidoscope/?a=808

This org helped the family leave the Soviet Union

http:// mystory.hias.org/