"The ground-breaking exercises for the Dirksen Building, named in 1972 for former Minority Leader Everett McKinley Dirksen, were held in January 1955, and the building was occupied in October 1958."
Submitted by <font face=arial>ML</font>.
"The ground-breaking exercises for the Dirksen Building, named in 1972 for former Minority Leader Everett McKinley Dirksen, were held in January 1955, and the building was occupied in October 1958."