I remember the night firefighters burned the old house (McGregor's?), so that the land could be cleared for the mall's construction. And then for months after that, it was just a huge expanse of mud before building began. Lots of skeeters and stuff. Yick.
Anyway, aside from Loblaw's: a liquor store, a drug store, a small restaurant, one or maybe even two local savings and loans, a kids' clothing store, or maybe the Holly Shop, or something similar? There were never more than about seven or eight stores in the enclosed portion of the mall. I was always hoping for a record store.

Another hope dashed in my teen years, LOL.
Marine Bank was in the outlot to the west of the main mall entrance at Nagle Road; I think a bank still operates out of the building, don't know for sure or which one.