People Belgium Willem Janssen peoplepill id: willem-janssen-3WJ 5 views today 5 views this weekWillem JanssenBiographyListsAlso ViewedListsWillem Janssen is in following listsBy work and/or countryNotable Belgian MissionariesGender:Male, Born in:Years 1850 to 1899Notable Dutch MissionariesGender:Male, Born in:Years 1850 to 1899From our partnersSponsoredWillem Janssen