The song was nothing more than a memory until I bought my copy of "The 'King' Kong Collection," a collection of reggae classics that had been recorded and produced by the late and legendary Leslie Kong. It is probably long out of print, but it's well worth seeking out - it's the only vinyl album that I've ever converted entirely to a digital format - it's that good.
The other thing I remember about the song is my dad, every time he heard it on the radio, saying "What is he saying? I can't understand what he is saying." Truth be told, I couldn't tell either - I just knew that it sounded great.
I don't know what became of Desmond Dekker, but at the very least he left us with one true gem: "Israelites," from the summer of 1969.