Siegbert Schönfeld who used to live in Londorf before he fled, recounted that the Jewish inhabitants from Kesselbach and nearby towns walked to Londorf’s synagogue to attend services for Shabbat and for the Jewish holidays. Since some had to walk up to 15 kilometers and the weather was at times unpleasant, Jewish families from out of town stayed with families in Londorf. This is how Siegbert's parents, Hedwig Blumenthal and Moritz Schönfeld met each other. After the Shabbat service, many people also stopped by Siegbert's grandmother Bertha Blumenthal's house for coffee and cake.
The synagogue was built before World War I and had seating for 80 to 100 people. The building was a three-story half-timbered house and had an apartment where the teacher for the Hebrew Sunday school lived. The synagogue was furnished with carpets, a cabinet containing several Torah scrolls, and other ritual objects. On November 9, 1938, the interior of the synagogue was vandalized but not set on fire, as neighboring houses and a Christian family living in the former teacher's apartment would have been endangered. There are conflicting accounts regarding the fate of the furnishings. Some say that everything was later burned, while others claim that the carpets and objects reappeared in non-Jewish homes. Other sources assert that Isaac Simon, the former head of the Jewish community, was able to give two Torah scrolls to an emigrating family. None of these claims have been confirmed thus far. The plot of land where the synagogue stood was sold to private individuals and divided. The building was demolished, and later a one-story grocery store was built. Today, we see a multi-story building in its place.