Obviously, no one read the volume with the origin tale of how the bear family came to the U.S. The family was Jewish (-stein) and came from a village named Berenstain. An immigration clerk made a mistake and Grandpappy bear, eager to assimilate in his new country without the onus of a Jewish name, just rolled with it. In other words, another Ellis Island mix-up.
Think of it as a Godfather II-style story for tykes.
Think of it as a Godfather II-style story for tykes.