- Born: Mar 13, 1861, Warsaw, Poland
- Died: Jun 19, 1870, Warsaw, Poland at age 9
He is buried in the Warsaw Jewish Cemetery. It is not absolutely cert ain, but it seems likely that he is a son of Jakob Cohn and Paulina He ilpern. Buried in the grave next to him is Bernard Heilpern, son of P inus Heilpern, a native of Brody. This Bernard Heilpern is thus a bro ther of Paulina nee Heilpern. This means Yitzhak Cohn would be burie d next to his maternal uncle. In the grave on the other side of Yitzh ak's is buried Shlomo Zelman Cohn, who is a son of Mojzesz Cohn (son o f Dawid Cohn) and Rochma nee Steinkalech/Kalkstein. Thus Yitzhak, o n the other side, would be buried next to his first cousin.