There are two versions of THE NEW YORK TRADER posted in the thread called Penguin: The New York Trader, and in The Digital Tradition.

By the way, I was wondering, was Sir William Gower a verifiably real person, and is there any truth to this story?

I found:

1. Sir William Gower, an apparently fictional character in the play "Trelawny of the Wells" by Sir Arthur Wing Pinero, 1898.

2. Sir William Leveson-Gower, 4th Baronet (c. 1647–1691), an English MP.

3. Vice Admiral William Spencer Leveson-Gower, 4th Earl Granville KG, GCVO, CB, DSO (1880–1953), a British sailor and governor.

However, I find it hard to believe that any of these was the original mentioned in the song.