Had a great grandfather named Harry Kaplinsky from Russia. He died young. Wife's name was Rosie but that may have been a nickname for Bella as I can't find much about her and this may be why? If this is the correct family, they actually had like 8 kids,... there was a Ruben, Arthur, Nathan, Sam, Peter, Bob, and others. Maybe a Mildred, but mostly boys. After his death, my grandfather and brothers changed their last names to Karlin.
Let me know if we are connected.