Moon River. . .

Of course, is one of the songs that Mercer wrote; made famous by Andy Williams and others. Mercer did write the song about a river (it would be more like a slough where the editorial department grew up) though it was not called the Moon River. (Apologies, we can't remember the original name of the river).

For some reason, the name of the song was already copyrighted, so Mercer changed it to Moon River ("Wider than a mile," etc.).

That river is still near Savannah, though it was only changed to Moon River after Mercer's death, to honor the lyricist.