Cargo Terminals at SFO, 1958. Black and white negative of the original terminals at San Francisco International Airport (SFO). This image shows several terminals and hangars on a tarmac. Some planes are parked outside the hangars and others are taxiing on the runway. Slightly left of center in the image is the Mills Field terminal, which has been converted into a general aviation terminal with several hangars. Southwest Airways, Western Air Lines, and TWA also have hangars next to the terminal. In the upper left is a United Airlines hangar. The San Bruno Mountains and the San Francisco Bay can be seen in the background.