John Sten Robert Arbuthnot (born 1941) (b. 1941) Parents Terence John Arbuthnot Karin Gunborg Sundgren Children Jennifer Mei-Chen Arbuthnot James Robert Yu-Ming Arbuthnot Siblings Diana Karin Arbuthnot Susan Christine Arbuthnot Partners Elizabeth Marjorie Plumb Swee Lien Ong