Why isn't Dveira Schumacher's Yahrzeit Exact?

We do not know the exact date of death of Dveira Schumacher. 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 Dveira Schumacher on 18 Heshvan. If you know the exact date of death of Dveira Schumacher, contact us via the contact page. Be sure to include the url: https://eachofushasaname.org/person/5391/Dveira_Schumacher.html