Eugen Weiler studied theology and philosophy in Freiburg. Ordained as a priest in 1926, he was a curate to August Ruf in Singen and from 1937 worked in the border community of Wiechs am Randen. He was under Gestapo surveillance during the 1930s and was interrogated on several occasions.
In 1942 Father Ruf asked his former curate for help for the Berliner Käte Lasker, who was living underground. Weiler collected the Jewish woman from Singen on May 20. She spent the night in his parish house and managed to get across the border the next day, with Weiler’s help. During an interrogation by the canton police in Schaffhausen, she mentioned Weiler’s name. Through unfortunate circumstances, the Gestapo also learned of it, and arrested the priest on June 1, 1942. Weiler was sentenced to four months in prison for “assisting an unauthorized border crossing,” serving his time in Konstanz. He was then sent to Dachau concentration camp. He was released shortly before the end of the war, on April 11, 1945. He returned to his parish and remained a priest there until his death in 1992.
Eugen Weiler and August Ruf were honored posthumously as Righteous Among the Nations by the Israeli Holocaust memorial center Yad Vashem in 2004.