"Big Annie" Clemenc (Mrs. Joseph Klemenc) of 1913 Strike fame was a Klobuchar. Her parents were George and Mary Klobuchar and came from Slovenia in the Austrian Empire in the 1880's. They can be found in Calumet on 6th St. in the 1910 U.S. Census. I'm sure Klobucher/Klobuchar are the same name. My mother went to school at Sacred Heart (Calumet, Mich,) with a George Klobuchar in the 1920's & 30's. I would look for spelling variations in locating this family.