My next assignment was the study of Missiology and Anthropology of Religions at the RC University at Nijmegen, from September 1966 to March 1969. While at Nijmegen, I also applied for dispensation from the celibacy, which was granted in February 1969. On 15 April 1969, I married An Mercx, a midwife and nurse who had served at Assin-Foso RC Hospital from 1961 to 1965, and at Elmina from 1965 to 1966.
In May 1969, I was offered the post of Junior Lecturer in the Study of Religions at the KTHU, one the five RC KIWTOs, into which the former odd-forty Dutch RC Major Seminaries had merged. At the time of my appointment, 1.08.1969, KTHU was relocated at the Uithof, the new out-of-campus of Utrecht University, for a trial period of near fusion in teaching and research with the Faculty of Theology of Utrecht University. Being the only godsdienstwetenschapper on the KTHU staff, I was seconded to the vakgroep Godsdienstwetenschap of the UU Faculty of Theology and assigned classes on preliterate religions for the unified body of students, RC as well as those of the other denominations (NH, Baptist, Oud-Katholieken) that took part in that ecumenical venture.
I resumed my study of Twi, and the critical study of the history of the ethnography of Akan religion, and began to teach seminars (werkgroepen) in the comparative study of religions on subjects such as prophets in Africa, spirit possession, and pilgrimage, with an emphasis on research of rituals. I obtained my PhD at Utrecht University in March 1982. The Utrecht Faculty of Theology commissioned me to teach a course on ʽATRʼ, the indigenous religions of Africa, for six weeks each year at the University of Zimbabwe (UZ) from 1985 to 1988.