Moving soon to Prince Albert, this bush-flying firm survived the Great Depression by concentrating on carrying prospectors and travelers into Saskatchewan's heavily forested north.

When the Second World War broke out, the firm's technical expertise was put to work running an overhaul facility in Prince Albert that maintained aircraft used by the British Commonwealth Air Training Plan.

Richmond "Dick" Mayson owned an aircraft in the late 1920s, a Stinson CF-AFF, when he met airframe engineer Angus Campbell, taught him to fly, and they became partners.

Fairs were seasonal, usually late August through mid-October, and to keep the business growing they began flying fresh fish from Lac la Ronge and Big River.

They built their bush pilot service to include up to seven aircraft, flying hunters, fishermen, prospectors, miners and surveyors, and were credited with opening up Saskatchewan's north.

Structured as a Crown corporation, SGA operated from 1947 to 1965 from a main base at the Prince Albert (Glass Field) Airport and a number of sub-bases in northern Saskatchewan.

Also flown was a wide array of other turboprop aircraft types including the Beechcraft King Air,[1] Convair 640,[1] de Havilland Canada DHC-6 Twin Otter, Embraer EMB-110 Bandeirante, and NAMC YS-11.