My grandmother on my father's side was Emma Burt from Barron,WI. My father was Donald T. Burt and he had a brother named Paul R Burt. I have some information on the family that my mother had and can update you on our family. Please contact me : firstname.lastname@example.org. I would love to know more about this family. My mother use to have contact with the Grengs family in WI in the 70's.