Mather Field was established as a training base and airfield during the latter part of World War I. It was located 12 miles south east of Sacramento, California. After WWI, it fell into disuse and was subsequently closed and dismantled. But in the 1930’s, it was reopened as a sub-field of the Presidio and Hamilton Fields.

Mather Field was reestablished as a separate post and activated on 13 May 1941. The field area was increased from 872 to 4,418 acres (17.88 km²) in June 1941.

Initially,  Mather Field was the site for advanced navigator training. But in 1943, Army Air Forces Training Command transferred the Navigator School from Mather Field to Ellington Field, near Houston, Texas.^[3]

Mather became a twin-engine Advanced Flying School, training pilots on North American B-25 Mitchell medium bombers. In 1944–45 it became an aerial port of embarkation to the Pacific in preparation for the expected transfer of large numbers of men and aircraft from Europe to the Pacific.^[3]

In the 1990s, the base was closed and most of its facilities transferred to Sacramento County, which continues to operate the airport, primarily for general aviation and air taxi services.

-Drawn from Wikipedia.