Wiki information Grothaus:

Gisela Grothaus
Olympic athlete, Person, Athlete, Measured person

Gisela Grothaus is a West German retired slalom canoeist who competed in the early and mid-1970s. She won a silver medal in the K-1 event at the 1972 Summer Olympics in Munich.

Ryan Grothaus
Football player, Measured person, Person, Athlete

Ryan Grothaus is an American soccer player who currently plays for Dayton Dutch Lions in the USL Professional Division.