"Everything's There at Lenox Square," or so said the slogan. In this vintage view of the Mall Level concourse, storefronts for Lerner Shops and A.S. Beck Shoes are visible,
Photo from Curteichcolor / Gaston Photo Service

Another view of the Mall Level concourse, with Yohannan's Restaurant in the background. 
Photo from Colourpicture Publishers, Incorporated

Yohannan's Esquire Room featured "Lamplight Dining" during evening hours. 

Photo from Red Edgerton / Cary B. Wilmer, Junior

The LENOX SQUARE Rich's opened, along with the mall, in August 1959. The store was the chain's third branch and included two restaurants; the Magnolia Room and B'rer Fox Room cafeteria.
Advert from Rich's, Incorporated

Here we see the south end of the Mall Level concourse. That would be Davison's, and then Muse's, on the left. On the right is the entrance of the S.S. Kresge 5 & dime.
Photo from Scenic South Card Company

The LENOX SQUARE Kresge's covered 40,500 square feet. The store included a basement sales floor. 

Photo from the Kresge Company Annual Report 1959