Searching for anything on Herberts Fathers line.
Herbert was born 19 jan 1898 in Minnesota died nov 1948 in Minnesota

Herberts Father was Herman Carl Fels born 9 mar 1866 in Germany died 25 dec 1954 in California

Hermans Father was Wilhelm Fels born ABT 1842 in Germany died 19 mar 1886 in Minnesota

Herberts Mother was Augusta Amelia Spriberg born 4 sep 1839 in Germany died ABT 1921 in Minneapolis.

Thats as far as I have gotten