Does anyone have access to the words (and, less importantly, the tune) of the above ballad, which concerns the courts-martial which followed the Iron Duke/Vanguard collision of 1875, please?
There is a recent book about the whole saga which may lead to the answer that you need. Lamentable Intelligence from the Admiralty: The Sinking of the HMS Vanguard in 1875 by Chris Thomas, History Press, 2006.