Hello Ginny!
My family Bubolz hails from MN - mostly Sibley County, but I do know there were some siblings and descendants in Renville Cnty around Bird Island. My great great grandfather was Carl "Charles" Bubolz, born 1854 in Kallies, Pommern, died 1928 in Sibley County. Was married to Anna Luedke from New Rome.
I am the great grandson of his daughter Hermine Louise Bubolz Meyer Bauermeister.
Best wishes from California!