Golden West Airlines
Golden West Airlines began operating the Catalina route in 1968, after Catalina Airlines ceased operations the same year. Golden West Airlines was already operating a busy commuter airline service flying to destinations throughout Southern California when they aquired the Catalina Airlines Grumman Goose fleet. The owner of Golden West Airlines was Bill Perera and later the California Westgate Corporation.
Golden West Airlines Fleet:

Grumman Goose: N1133, N322, N329, N324, N93G.

DeHaviland Twin Otters

Shorts Brothers model 330

DeHaviland Dash 7s
Captain Clarence Jasper poses with N322 at Long Beach Airport. Clarence Jasper joined the Royal Canadian Air Force in 1940, and in 1943 he was assigned to combat flight duties in England with a DeHaviland Mosquito squadron. He shot down six German planes, destroyed four planes on the ground and destroyed three V-1 buzz bombs in the air, earning him the Distinguished Flying Cross. Photo courtesy of Fred Austin lll
Golden West Airlines N1133 c/n #B-59 at Long Beach Airport. Photo courtesy of Peter de Groot and Airliners.net
N322 c/n B-73 in Avalon Harbor, 1971.
N322 at Long Beach Airport, 1972. N1133 is seen in the background. Photo by Chris Bell
N93G c/n 1130 at Long Beach Airport, 1972.
Photo by Chris Bell
Air Catalina 
Air Catalina began it's operation in 1974 after aquiring most of the Catalina Seaplanes Goose fleet. With a new blue on white paint scheme and flying fish logo on the nose, the new airline operated year round from Long Beach Airport and San Pedro. The owner of the airline was Jackson Hughes.
Air Catalina fleet:

Grumman Goose: N11CS, N12CS, N13CS, N14CS, N18CS (previously registered as N1133)
N14CS, c/n 1048 is currently at the Smithsonian National Air and Space Museum, in Washington DC.
A busy Summer day at the Air Catalina Pebbly Beach ramp, 1975.
N13CS climbing the ramp at the San Pedro steamship and amphibian terminal.
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Airlines of Catalina Page #4
1968-1973
Airline Logo and Paint Livery
1974-1977
Airline Logo and Paint Liveries
1976 photo of Air Catalina N12CS c/n 1085. Photo by Richard Werno
N93G c/n 1130 in 1970. Photo by Bob Garrard
N13CS c/n 1007 at Pebbly Beach. Photo by Roger Meadows
N11CS at KLGB in 1977
Pebbly Beach Amphibian Terminal. Photo by Roger Meadows.
Golden West Goose and Otter. Photo courtesy of Fred Austin lll
N1133 was re-registered later as N18CS. Shown at Long Beach airport.
Nice shot of N93G at the end of the pier.
N12CS, c/n 1085 ready to board at Pebbly Beach air terminal.