In 1733, the church was extended as we know it today. Wunderthausen and Diedenshausen founded their own parish in 1891 and separated from Girkhausen.
In 1920, two new bells were purchased thanks to donations from American friends. The old bell had been irreparably damaged by a crack four years earlier.
In 2017, Wunderthausen/Diedenshausen and the Lukas parish joined together to form the Lukas parish in the Elsoff and Edertal.
The "History and Culture Trail" in Wunderthausen leads past the church. If you are interested in visiting the church, please contact the parish office of St. Luke's parish. Tel.: 02755/240 or at the e-mail address: lukas-aktuell@kk-wi.de.