Crowds gather at the Main Entrance on the mall's grand opening day, September 30, 1969.
Photo from http://www.floridamemory.com / State Library & Archives of Florida

The dedication was officiated by state senator Mallory E. Horne (D). That's George Jenkins, founder of Publix Supermarkets, cutting the ceremonial ribbon.

Photo from http://www.floridamemory.com / State Library & Archives of Florida