Auberzinski OR Y Information

I am also looking for family members with the last name of Auberzinski and Auberzinsky. Half the family spells it with the "I" and the other half with the "Y". THe family story is when my great grandfather moved here to the states he shorted the last name to what it is now. I can not find any paperwork on what the name was originaly. Any information would be appericated. Thank you. tammie Lou