A groundbreaking online search engine is now enabling individuals to uncover whether their ancestors were members of the Nazi Party, providing unprecedented access to historical records that were once difficult to obtain.
Christian Rainer, an Austrian journalist, discovered his grandfather's membership in mere seconds. "I found out he joined the Nazi Party around April 21, 1938, just days after the Anschluss," Rainer revealed, referring to Hitler's annexation of Austria. His grandfather, Franz Rainer, applied for membership only five days after it became legal in Austria.
"I always knew he was close to the Nazis, but I was surprised it only took him five days," Rainer said. "He was an academic. He should have known in 1938 who the Nazis were."
The tool, developed by the German newspaper Die Zeit in collaboration with archives in Germany and the United States, searches through millions of Nazi Party membership cards from the NSDAP-Mitgliederkartei. These records, which nearly faced destruction in the final days of World War II, were saved by Hanns Huber, a paper mill director who later handed them over to American forces.
For decades, these cards were stored at the Berlin Document Center before being transferred to the German Federal Archives in 1994, with microfilm copies sent to the U.S. National Archives. Previously, accessing this information required formal requests to German archives, but recent digitization efforts have made the data publicly searchable online.
Die Zeit reports an "overwhelming" response to the search engine, with millions of accesses and thousands of shares since its launch in early April. One user shared on the newspaper's website: "I've already found two close relatives, which destroys the myth that no one in our family was involved. To have my perspective changed at the age of 71 is a bitter shock."
Rainer emphasized the tool's personal significance, noting it helped clear other family members from suspicion. "I was happy I didn't find anyone else from my family, especially not my father," he said. "I had never suspected him of being a Nazi."
Approximately 10.2 million Germans joined the Nazi Party between 1925 and 1945. These membership cards played a crucial role in post-war de-Nazification efforts by helping identify individuals affiliated with the regime.
Rainer believes this new accessibility shifts historical research focus. "Previously, research focused on higher-ranking people who became politicians, judges or doctors later on," he explained. "A lot of people now are searching for family members, so it's a very individual thing."
He added, "Eight decades after the end of World War II, you can still discover truths you haven't known before."