the present chief is john lachlan mackintosh of mackintosh (born 1969), formally styled as the mackintosh. he succeeded as chief in 1995 and currently resides in singapore. the mackintosh is an integrated humanities (ih) and history teacher in the humanities faculty at nanyang girls' high school and married to a language arts teacher and academic, miss vanessa heng in march 2014, after their engagement in 2013.