BG Westall was born on 6 September 1937 in Corpus Christi, TX. BG Westall joined the Montana National Guard in January 1953, serving as a cannoneer in Battery "B" 443rd Field Artillery, Ft. Missoula, MT. In 1958, BG Westall transferred to HI-IT, 2nd Recon Squadron, 163rd Armored Cavalry Regiment. On May 3, 1960 he graduated from Infantry Officers OCS, Ft. Benning, GA, and was assigned as a 2rid Lieutenant in the Medical Service Corps. On 14 April 1961 he was assigned 2nd Platoon Leader, Troop G, 2nd Recon Squadron, 163rd Armored Cavalry Regiment. February 1962 COL Westall graduated from the Armored School, Ft. Knox, KY. On 1 April 1963 was promoted to 1st Lieutenant and assigned as Motor Officer, HI-IT, 2nd Squadron, 163rd Armored Cavalry Regiment. On 13 December 1963 he was assigned as Executive Officer, Howitzer Battery, 2rid Recon Squadron, 163rd Armored Cavalry Regiment. On 1 July 1965 BG Westall was promoted to Captain and assigned as Battery Commander, 2nd Recon Squadron, 163rd Armored Cavalry Regiment.

In December 1967 BG Westall graduated form the Field Artillery School, Ft. Sill, OK. On 18 December 1967 he was assigned as Senior Liaison Officer, HHT, 163rd Armored Cavalry Regiment. On 24 August 1968 BG Westall was assigned as unit Commander 134th Public Information Detachment, Alaska National Guard. On 1 July 1969 he was assigned as Adjutant, HHC, 3rd Battalion (M), 297th Infantry. On 25 May 1970 BG Westall was assigned as Operations & Training Officer, S-3, HHT, 3BN, 297tb Infantry. On 31 December 1971 he was promoted to the rank of Major. On 1 May 1972 BG Westall was assigned as Operations & Training Officer, S-3, HHT, 5th Squadron, 297th Cavalry. On 20 November 1973 BG Westall transferred to the Retired Reserve.

On 1 February 1984 BG Westall was assigned as Program Officer, Alaska State Guard (ASG). On 5 May 1985, BG Westall was promoted to the rank of Lieutenant Colonel and assigned as Chief of Staff, HHC, ASG. In March 1986, he was promoted to the rank of Colonel, ASG. In January 1987 BG Westall was assigned as Commander, 3rd Region, ASG. In 1988 BG Westall was assigned as Deputy J-4, STARC Staff, AK ARNG. Subsequently, in May 1989 BG Westall was re-assigned as Chief of Staff of the Alaska State Defense Force (formerly the ASG). In May 1990 BG Westall assumed the command of the 2nd Region, ASDF. On 1 March 1993 BG Westall was assigned as Inspector General, ASDF. On 1 August 1993 BG Westall was assigned to develop and command the Aviation Detachment (Light), 1REGT, ASDF. On 15 July 1994 BG Westall was again assigned as Chief of Staff, ASDF. On 29 July 1995 he was made the Deputy Commander, ASDF. On 24 February 1996 he was promoted to Brigadier General, ASDF, the position he currently holds.

BG Westall has been awarded Armed Forces Reserve Medal, Army Reserve Achievement Medal, Armed Forces Reserve Medal - Ten Year Device, Montana State Service Ribbon, Montana State Achievement Ribbon, Alaska Commendation Medal, Alaska Distinguished Service Medal, Alaska State Service Medal, ASDF State Activation Medal, ASDF Drill Attendance Ribbon, ASDF Training Achievement Ribbon and the ASDF/SGAUS Membership Ribbon.

BG Westall lives in Wasilla with his wife, Joan.