31 July 1970 Black Tot Day was the last day on which the Royal Navy issued sailors with a daily rum ration (the daily tot).
Black Tot Day, article from Wikipedia     https://en.wikipedia.org/wiki/Black_Tot_Day

BRITISH NAVY PUSSERS RUM   - Larry Kaplan       https://www.youtube.com/watch?v=vJRQJysW7-A
THE RATION OF RUM   - Pierce Campbell       https://www.youtube.com/watch?v=2P5jBk5f7A8
A DROP OF NELSON’S BLOOD WOULDN’T DO US ANY HARM  various recordings on YouTube      https://www.youtube.com/results?search_query=A+Drop+of+Nelson%E2%80%99s+Blood+song+

Link to Index of Any July Songs?     /mudcat.org/thread.cfm?threadid=170041#4111432:~:text=the%20one%20below.-,AIR%20AN%20SOMME,-AMELIA%20EARHEART%E2%80%99S%2
Link to Index of Any August Songs?     /mudcat.org/thread.cfm?threadid=170145#4114235:~:text=OF%20AUGUST%20SONGS-,ABRAHAM%2C%20MARTIN%20AND%20JOHN,-ACCORDING%20