The speech was initially unnamed and had the scintillating title of "Address at the Cornerstone Laying Ceremony of the Cannon Office Building." (Yawn.)

But considering how resonant its first metaphor was to the public, it's no surprise that the speech took on the name it did: the Man with the Muckrake. Thanks to the speech, investigative journalists took on the name "muckrakers," so calling TR's speech "The Man With the Muckrake" helps people link the two together.