[2] Here inventor Thomas Blanchard and abolitionist John Brown worshipped; Daniel Webster spoke; and Jenny Lind sang.

In the late 1950s, Haynes' contribution was undermined when Court Square was separated from the Connecticut River by the construction of the elevated Interstate 91, and a 1,754 car parking lot beneath it.

To the right of the church, the Springfield Municipal Group was erected in 1911–13, and dedicated by United States President William Howard Taft in December 1913.

In his dedication speech, President Taft praised the Springfield Municipal Group as "one of the most distinctive civic centers in the United States – and indeed, the world."

The hotel became offices by the 1930s; however, the Court Square Playhouse remained the city's premier live theater until its surprise demolition in 1957.

The Court Square Building features a brown brick exterior relieved with details of brownstone, terra-cotta, and granite.