Born in Bromley, Kent, England. SOB (son of a builder)
1940	Brother Keith born in Bromley, Kent, England
1940–1945	Evacuated (with mother and brother) to Ipplepen, Devonshire, during WWII. Father built runways as part of war effort.
1947	Family emigrated to Durban, South Africa.
1954	Brother Philip born in Durban, South Africa
1956–1959	B.Sc. and B.Sc (Hons.), University of Natal, South Africa
1959	Parents and brothers returned to England
1960–1961	Ph.D., University of Natal, South Africa
1962–1969	Junior Fellow/Lecturer (Mathematics and Physics) University of Bristol, England
1967	Married to Fiona Armstrong, London, England
1969–1974	Associate Professor/Professor (Applied Mathematics) University of Waterloo, Ontario, Canada
1970	Daughter Denise born in Ontario, Canada
1972	Daughter Cynthia born in Ontario, Canada
1974	D.Sc., University of Natal, South Africa
1974–2004	Professor (Mathematics) University of Arizona, Tucson, Arizona, USA
1992	Father died in Broadstairs, Kent, England
1998	Mother died in Broadstairs, Kent, England
2000	Grand-daughter, Brooke, born to Denise in Arizona, USA
2003	Grand-son, Mason, born to Denise in Arizona, USA
2004	Retired
2004–	Professor Emeritus (Mathematics) University of Arizona, Tucson, Arizona, USA
2006	Grand-son, Ethan, born to Cynthia in Tennessee, USA
2006	Recipient of the National Park Service Search and Rescue Award
2007	Recipient of the Pima County Sheriff's Department Citizen's Medal
2008	Recipient of the National Association For Search And Rescue Hal Foss Award
2009	Grand-daughter, Kylie, born to Cynthia in Tennessee, USA
2011	Grand-daughter, Lucy, born to Cynthia in Tennessee, USA
2011	Recipient of the Arizona Search and Rescue Association's Volunteer of the Year Award
2012	Recipient of an Arizona Sheriffs Asociation and Arizona Emergency Services Association Award