Career
He worked with Geart Aeilco Wumkes in translating the Old Testament (Frisian:Alde Testamint) in 1943. The major work was carried out by Wumkes with the translation of the Bible in Frisian with the New Testament (Frisian: Nije Testamint) published in 1933 and the Old Testament (Frisian: Alde Testamint) in 1943. The complete Bible was published in 1943 (Frisian: Bibel).