Holly, I located the following on the Groddeck surname. Its is the only one listed. Has his SS# and last address hoping this can help in some way. FREDERICK GRODDECK Request Information (SS-5) SSN 394-38-0988 Residence: 53154 Oak Creek, Milwaukee, WI Born 23 Apr 1910 Last Benefit: Died Jul 1987 Issued: WI (1956 And 1957) Ray in Antigo WI