In 1954, the WHITTIER QUAD encompassed approximately 188,700 leasable square feet. As one can see, the open-air mall occupied only a portion of the site at this time. Most of the remainder (in medium gray) was subdivided into residential lots.

WHITTIER QUAD TENANTS 1954:

HINSHAW'S WHITTIER / F.C. NASH (with Green Stamp Store) / SHOPPING BAG supermarket / W.T. GRANT / Arline's Flower & Gift Shop / Ballard's Sausage House / Barker Brothers Furniture / Bush Drug Company (with Coffee Shop) / Coggan Cleaners & Laundry / Coffman's Hardware / Crown City Mattress / Elgin Jewelers / Encore Fashions / Guys 'n Dolls Children's Store / Heck's Men's Store / K.D. Miller Appliances / Karl's Shoe Store / Kusel's Poultry / Lee's Photo Supply / Newsom's Decorative Shop / Paige Quality Shoes / Raymond D. Winnen, Optometrist / Quad Barber Shop / Quad Beauty Center / Quad Laundromat / Quad Stationers / Shoemaker's Old Fashioned Candies / Stella's Shoe Repair / Trend O' Fashion ladies' wear / Veatch's Shoes / Westbrook Yardage 

In this late 1950s snapshot, we see the mall's east store block and northeast corner of its Hinshaw's anchor store.
Photo from Colourpicture Publishers, Incorporated

Another late '50 snapshot is an aerial view of the open-air shopopolis. The major tenants are Hinshaw's (lower left), Shopping Bag (upper left) and W.T. Grant (in the center).

Photo from http://beta.worldcat.org / Howard D. Kelly / Los Angeles Public Library