"Those fool drummer boys"

I remember a scene form Titanic (1953) where where Norman meets his father at the end and mention is made of drummer boys.

I found this online script for Titanic https://transcripts.thedealr.net/script.php/titanic-1953-C4x and when they meet their dialog includes:

Norman: "Just the same you're sore at me for coming back."

Richard: "Yes, I'm sore at you - the way I've always been sore at those fool drummer boys who stayed on to play the last retreat."

This implies that Richard and Norman are both familiar with a story about drummer boys, real or fictional in Titanic (1953) and real or fictional in real history, who bravely or foolishly, depending on your point of view, stayed instead of running.

So I checked the script and couldn't find any earlier mention of those drummer boys. Perhaps they were mentioned in a previous scene that was filmed but cut out in editing, or a scene which was scripted but deleted before being filmed. Or maybe the script writer imagined that everyone would know which drummer boys Richard meant, or maybe he thought that everyone would assumed (correctly) that some drummer boys had been heroic/foolish sometime in history.

I note that Richard Sturgis would be assumed to be about the same age in 1912 as Clifton Webb (1889-1966) was in 1953, about 64, and so would have been born about 1848 & could have heard contemporary tales of heroic/ foolish drummer boys in a number of 19th century wars.

Anyway, I wonder if anyone knows anything about that menton of drummer boys in Titanic (1953).

Curiously, in A Night to Remember (1958) there is a scene with young boys in uniform facing danger. Bellboys on the RMS Titanic , being scolded by their boss for smoking in the lobby as the ship sinks. And I have read that the Titanic did have teeenage bellboys, as well as female employees, presumably maids, the same age, & that none survived.