On page 57 of the original 1910 Boy Scouts of America Handbook, it promises “By this method it is possible to learn the Morse alphabet in less than an hour.” Which does seem possible. Someone find a kid who hasn’t ruined his brain with chemicals as I have and test it out.
Although the “Nimble Nig” being chased by an alligator and the “Gay Goats” might be out of date mnemonic devices…
And you can sure feel the distance of time, when in 2023 you have to google “Lobengula” who was apparently much better known in 1910, if he’s that familiar to 12 year olds…..