Ursula Knab  Ursula "Ulla" Knab (November 22, 1929 in Heidelberg – May 23, 1989 in Karlsruhe) is a German athlete who competed mainly in the 100 metres. She competed for West Germany in the 1952 Summer Olympics held in Helsinki, Finland in the 4 x 100 metres where she won the silver medal with her team mates Helga Klein, 80 metre hurdles bronze medalist Maria Sander and Marga Petersen.