When I joined the RM , one of our squad was one David Balls. Being an extrovert, he would amuse us by making a small mistake in drill, and the DI 1 would shout "You - number 3 in first rank,what is your name?" the whole squad were given extra drill when he shouted back: "Balls, Colour Sergeant!" , causing a big laugh. A school friend was John Thomas Painter-Brown..
I have heard of a joke about a private soldier by the name of "Darling" But I can't quite remember it. Something similar to your tale of Marine Balls. I expect he got the nickname "Big" in the Corps. Of course these days it would be "Golden".
My sister was in infant school & the Teacher was compiling a list of the parent/guardian of everyone in the whole class.As the teacher worked round the class asking each child,it was producing lots of giggling until the teacher snapped out "for goodness sake,you should only laugh if it's something really silly like Frederick or George" My sister was next & revealed my Fathers names "Frederick George" :)