1940s
1942
A complaint is made to the Municipal Building Commission that employees are feeding pigeons roosting on the window sills.
1942-1945
The mayor's reception room is used as a Civil Defense office.
1945
The Municipal Building Commission calls a pigeon extermination conference for all building operators.
1946
Mayor Hubert Humphrey raises the issue of cleaning the exterior.
1949
A set of porcelain steel clock faces with stainless steel hands is installed in the main tower, and the numerals and hands are outlined with neon tubing.
| 
