I found a wedding certificate for Klara Elisabeth Oerter. She was married in Austria on July 14, 1948. She married a U.S. Navy gentleman by the name of Elmer Gwinn Roberts.
She stated that her father's name is Fritz Oerter and no mention of a mother. She also mentioned she was born in 1924 in Cologne, Germany.
Could you please verify both parents and if she had any siblings?

Thank you so much for your time and efforts.