 In later life, his name was on some formal occasions preceded by the Muslim honorific Hajji, usually bestowed upon those who had gone on pilgrimage to Mecca.Between 1950 and 1953 Princen was an official at the Indonesian Immigration Office.In his free time, he toured Java by motor-bike, earning for himself a case of skin cancer that disfigured him in later life until friends got the money together for skin grafts.