Park commissioners laid out the plaza in harmony with the lines of the kiosk, according to one source, reserving the center for a fountain.

[6] Louis J. Wilde, banker and part-owner of the U. S. Grant Hotel, donated funds to help build a fountain located in the center of the Park.

President Calvin Coolidge was reported to have pushed a button in his Oval Office all the way in Washington, D.C. that rang a gong in Horton Plaza.

[9][10][11] A Union veterans group opposed the tribute to the president of the Confederate States of America and it was removed later that year, but it was put back in 1985 as part of the rehabilitation of the park coinciding with the building of Horton Plaza Mall.

On November 2, 1960, then-Senator John F. Kennedy spoke at Horton Plaza to make a last-minute appeal for votes just six days before the 1960 Presidential Election.

The overall project aims to restore the historic Horton Plaza Park and fountain, re-establishing it as the regional treasure that it was in the early-to-mid 1900s.

[16] On August 16, 2017, following the Charlottesville terror attack in Virginia, the San Diego City Council removed the Jefferson Davis plaque.

[11] On June 12, 2020, following the Black Lives Matter outcry after the murder of George Floyd, the Robert E. Lee monument was quietly removed.

[24] There are three food and beverage Pavilions located at Horton Plaza Park including Starbucks and Sloan's Ice Cream.

[25] A booth selling tickets to local attractions is operated by the San Diego Performing Arts League.