Hon. John Adam Humphrey Drummond (3 November 1992)
Hon. Miranda Phoebe Dewar (1 March 1968) she married Philippe el Khazen on 15 February 2003. They have two children:
Zelfa Elisabeth el Khazen (16 December 2003)
Namir Clovis el Khazen (29 July 2005)
Hon. Henrietta Cynthia Dewar (27 January 1970) she married Justin Wateridge on 21 July 2001. They have three children:
Isabel Elisabeth Wateridge (2 August 2003)
Anna Laura Wateridge (25 August 2005)
Benedict James Alan Wateridge (24 July 2008)
Hon. Alexander John Edward Dewar (4 March 1971) he married Donryn Clement on 5 April 1997. They have one son:
James Alexander Thomas Dewar (5 July 2000)
The Honorable Simon Dewar (11 February 1941) he married Helen Bassett on 3 August 197 and they were divorced in 1973. He remarried Jennifer Hedge on 4 September 1979. They have three daughters:
His daughter Penelope married in 1959 Norman Butler, eldest son of Paul Butler of Oak Brook, Illinois, and grandson of Frank O. Butler, also of Oak Brook (J.W. Butler Paper Mills, Chicago). They had three children – Paul Butler, Tiggy (Tracey) Butler and Sean Butler.
He is buried with his wife in the family plot at Aberdalgie just west of Perth.