Why isn't Israel Dratevnik's Yahrzeit Exact?

We do not know the exact date of death of Israel Dratevnik. According to Jewish tradition, if the exact date of death is not known, the yahrzeit of a person can be observed on any day, as long as it is that same day every year. Since that is the case, we observe the yahrzeit of Israel Dratevnik on 25 Av. If you know the exact date of death of Israel Dratevnik, contact us via the contact page. Be sure to include the url: https://eachofushasaname.org/person/947/Israel_Dratevnik.html