Great photos! Very interesting for me, too; I've seen old photos of early regional shopping centers/malls like Crenshaw Plaza and the Lakewood Mall, but I've never seen a ground level photo of an early freeway-adjacent shopping mall. According to the link you provided, it's the first SoCal freeway-adjacent shopping center. The shots of the freeway are great too, with the little black freeway sign in the center median with no guardrail or barrier of any kind. This is also interesting to me because I used to work briefly in that area, in West Covina, adjacent to the West Covina Plaza. At first I thought the Huddles was where the Hooters is now, but I realized I was thinking of the wrong shopping center.
Since I had no plans this morning, I was gonna drive out to the Eastland Center and perhaps do a now and then set of photos, but it's very cold and cloudy today with a chance of rain; maybe another time.