- Father of Efrem Zimbalist Jr..
- Grandfather of Stephanie Zimbalist.
- Conflicting sources give date of birth of April 9 or April 21. However, this is because he was born in Russia, prior to the Revolution (1917), so both dates are correct. One is the date in the Old Style Calendar (pre-1917) while the other is the date in the New Style Calendar (adopted with the revolution in 1917).
- His first wife, soprano Alma Gluck, was one of the most famous classical music singers of her day, and one of the first to make best-selling recordings.
- One of the great classical violinists of the twentieth century.
- Stepfather of famous author Marcia Davenport.
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