Very shortly after I published my blog post, I received a comment signed by Mike Berenstain. I will reproduce the comment below:
I normally don't comment on blogs about our family name but yours was so unusual and imaginative that I thought it only appropriate to add my thoughts. "Berenstain" according to our family lore was an attempt by an unknown imigration officer sometime in the late 1800s to reproduce phonetically a highly accented version of the traditional Jewish name "Bernstein" as pronounced by my Father's grandparents when they came to America from the Ukraine. In that linguistic region, the name tended to come out sounding something like, "Ber'nsheytn". Since that's how the name was originally documented, it has always been spelled that way by our family and it has always been misread and mispronounced by nearly everyone.
I normally don't comment on blogs about our family name but yours was so unusual and imaginative that I thought it only appropriate to add my thoughts. "Berenstain" according to our family lore was an attempt by an unknown imigration officer sometime in the late 1800s to reproduce phonetically a highly accented version of the traditional Jewish name "Bernstein" as pronounced by my Father's grandparents when they came to America from the Ukraine. In that linguistic region, the name tended to come out sounding something like, "Ber'nsheytn". Since that's how the name was originally documented, it has always been spelled that way by our family and it has always been misread and mispronounced by nearly everyone.