Familie Tummoscheit is a family-history and genealogy archive established in 2011 to document the Tummoscheit, Differt, Spangenberg, Dette, and Ritzenhoff family lines. Its research focuses on ancestors and relatives, with roots connected particularly to former East Prussia, Silesia, Thuringia, and North Rhine-Westphalia. The website brings together a growing genealogical database, family trees, historical records, photographs, and other documents to help relatives and future generations explore their heritage.

Visitors can search for people, families, names, and places, and browse records such as church register entries, civil registry documents, birth and marriage certificates, photographs, and gravestone images. The archive also provides historical maps, geographic name distributions, news about newly added research, and selected helpful links. Relatives may request personalized access to protected information; living people are not displayed publicly. The site invites visitors to contribute family details, photographs, certificates, and other historical materials through its submission and contact options. Its database currently lists 2,466 people, 792 families, 672 media files, and 535 places, and is continually updated as new sources are discovered.