The Grand Union supermarket at PRINCE GEORGES PLAZA operated in two different locations. Here we see the first, which opened for business in  December 1958. It anchored the mall's northwest corner.

Photo from Library of Congress

The original Grand Union was replaced by this building, which housed a 149,000 square foot Woodward & Lothrop. This store opened in August 1966. Grand Union had moved into a new store on the southwest corner of the complex.

Drawing from Woodward & Lothrop, Incorporated