Who wrote the State Farm jingle?

The file

Manilow's other jingle, and the longer-lived: State Farm has used the good-neighbor line and its five-note tune for over fifty years. It's the rare jingle that became the corporate identity.

Gen X heard it during every football game of their childhood, sung, and hears it now as a slogan. The melody was on the way to being the company's sonic logo before anyone used that phrase.

Sources: Wikipedia — State Farm