A television producer, in 1978 Vlock was given the assignment to produce a program on the commemoration of Yom Hashoah (Day of Holocaust Remembrance) in New Haven, Connecticut. To make it memorable, she interviewed Holocaust survivor Jerzy Kosinski. The result was so powerful that she realized that there were many such stories that needed to be captured before the witnesses died.
She founded the Holocaust Survivors Film Project Inc. in 1979 to do just that, and archived the resulting testimonies at Yale University. In 1981, she won an Emmy Award for her documentary about Holocaust survivors, Forever Yesterday, and her work inspired similar work by Steven Spielberg’s Shoah Foundation. Vlock died July 8 of injuries from an auto accident. She was 74.