Sofie Bär lived briefly at Kerkpad 6 in Blaricum during World War II. In 1942, her belongings were confiscated, showing she owned very little. She soon disappeared from local records and was later admitted to the Jewish psychiatric institution Het Apeldoornsche Bosch. In January 1943, she was deported with over 1,200 patients to Auschwitz, where she was murdered at age 59.
She was unmarried and had no children. Many of her family members were also killed in the Holocaust, including her brothers and close relatives, most of whom were murdered in Auschwitz or Sobibor.