- Category : 1909-births
- Type : MGE
- Profile : 5/1 - Heretical / Investigator
- Definition : Triple Split
- Incarnation Cross : LAX Upheaval 2
Dutch chaplain, who was one of the last victims of the SD during Operation Silbertanne.
He was the eldest son of a German father, the tailor Theodor Böcker and Maria Gieling. In 1921 he was sent to the preparatory seminary Kuilenburg near Culenborg. In 1936 the Archbishop of Utrecht, Johannes de Jong initiated him as priest. He worked as a chaplain in the Saint-Martinus parish of Pannerden and the St. Nicolas parish of Jutphaas.
In 1942 he became chaplain of St Augustine parish in Groningen. Here he became involved in non-violant resistance work against the German occupants. Together with the pastor F.J. Schoenmaker, he distributed food food vouchers, collected money for illegal refugees and hide them.
In the evening of 25 September 1944, two SD men, Gerrit Lourens and Jebbin approached the rectory. They wanted Schoenmaker, but he had gone underground in Friesland. Then Böcker was ordered to come and was shot down immediately. The SD tried to mislead the the Dutch civilians by spreading pamphlets suggesting that the murder was the work of communists.