The weekly newspaper Die Zeit launched the searchable database in April after U.S. National Archives released microfilm copies of Nazi party membership records.
Felix Lieb of the Munich-based Institute for Contemporary History (IfZ) told Polish Press Agency (PAP) the tool's popularity stems from persistent gaps in family knowledge about the Nazi past.
"While Nazi party membership was discussed in Germany in relation to public figures, it long remained a taboo subject within families", Lieb said, adding that the taboo is now fading — partly because the ancestors in question are mostly dead, and it is usually grandchildren doing the searching.
Lieb also pointed to a broader shift in attitudes. For decades, NSDAP membership was played down as mere opportunism, or individuals claimed not to have known they had been enrolled.
Today, he said, there is greater awareness that joining the party "was generally a conscious act expressing either ideological consent to the Nazi regime or at least accommodation to those in power".
He cautioned, however, that party membership "says little about a person's actual behavior in the Third Reich", and that it should not be the sole basis for judgment. The database is also incomplete — absence from it does not prove someone was not a member — and AI-assisted data processing may have introduced errors.
Lieb sees the tool's main value in the family sphere rather than in uncovering new facts about public figures, where the historical record has already been well researched.
"Opinion polls regularly show that most Germans believe their ancestors were victims of Nazism or at least rejected it. Now that can be checked more easily — perhaps with results showing someone was much closer to National Socialism than assumed. Many myths will probably not hold up", he said.
He also warned that easy digital access risks encouraging oversimplification. "Those who really want to know how their ancestors behaved in the Third Reich must conduct further research", including queries to the Federal Archives, he said.
(jh)
Source: PAP