There were two songs penned by Thomas Denny, dedicated to the Tank Destroyer Men. Both songs give credit to Denny for the words and music although he is listed as a Captain for the first and a Major for the second. The first song includes references to Hiro-Hito and Schickle Gruber.
The second version eliminates those specific references, which I believe was an attempt to make this a lasting tribute to the men serving in the TDs, rather than focus on the enemy. The second version was officially approved in September of 1944.
Version 1 - "Tank Destroyer Men" by Cpt. Thomas Denny
MP3 of Ver. 1 - Featuring Tenor Warren Moulton and Gabriella Scanu on piano
Note: The above media file should play automatically but you may be prompted to download the file and play it using a media player program.
Version 2 - "Tank Destroyer Men" by Maj. Thomas Denny (Official)