In June 1933, Barbie's younger brother, Kurt, died at the age of eighteen of chronic illness. Later that year, their father died. The death of his father derailed plans for the 20-year-old Barbie to study theology, or otherwise become an academic, as his peers had expected. While unemployed, Barbie was conscripted into the Nazi labour Service, the Reichsarbeitsdienst. On 26 September 1935, aged 22, he joined the SS (member 272,284), and began working in the Sicherheitsdienst (SD), the SS security Service, which acted as the intelligence-gathering arm of the Nazi Party. On 1 May 1937, he became member 4,583,085 of the Nazi Party. In April 1939, Barbie became engaged to Regina Margaretta Willms, the 23-year-old daughter of a postal clerk.