If you're still interested, this person is also related to me. The actual maiden name of his mother was Dubnowitska. We're distant relatives!
You can call me anytime. I want more info, so maybe we can compare notes. I have attached a letter my great-grandfather wrote about him and his wife, Eufemia (or Ewfemia) Prigodich who was born outside Lyshche, near Minsk in 1902. Her parents actually came over from Russia too.