Jaroslaw Questions

1. Is the William Jaroslaw listed with Mary in the 1920 census our William?
2. Was the Joseph Jaroslaw in MA in the 1920 census our Joseph?
3. Where are Joseph and William buried?
4. Where and was Joseph naturalized?
5. Is the William listed in the 1910 census our William?
6. Who are Rebecca Wexlers parents? and was her father a rabbi?
7. Was Jaroslaw the original name?
8. When was William's death?
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