I was curious to know the original French words but so far I have not been able to find them anywhere. Geneviève de Brabant's two-act French libretto was written by Louis-Adolphe Jaime and Etienne Tréfeu, and the operetta was first staged at the Théâtre des Bouffes Parisiens, Paris in 1859. Thanks to Boosey and Hawkes it was easy to download the censor's copy of the libretto and I ploughed through it all to see if I could identify the words which became "We run them in..." A word search showed me that there were no gendarmes in the operetta (there weren't any in the medieval legend on which it was based, either, but Offenbach had an offhand way with legends—there were no Can-Cans in Orpheus' underworld) so I assume that the translator had simply interpolated a comic song in English that had no relevance to the plot. But I couldn't even locate in the libretto the original words which must have gone with the tune that we and the US Marines know so well.
Wikipedia tells us that Henry Brougham Farnie (1836–1889), a British librettist and adapter of European operettas, wrote the English version, which became very popular and was produced in New York in 1868. Some of his English-language versions of other operettas became record-setting hits on the London stage of the 1870s and 1880s, strongly competing with the Gilbert and Sullivan operas being played at the same time (and he wrote a song called Sweet Dreamer with Arthur Sullivan, so perhaps thinking that Les Deux Gendarmes is by G&S is not so silly).
By now I am bored with these public guardians bold yet wary and so I do not want any comments on all this. But I would still like to know the French words which were sung to that tune, and if anyone can find them and tell me or give me a link to them I will send £20 to the Save the Children Fund.
H. B. Farnie was not a bit boring. Apart from writing or adapting libretti for dozens of operettas, he wrote the first book on golf instruction, The Golfer's Manual: being an historical and descriptive account of the national game of Scotland, under the pseudonym, "A Keen Hand". Here he is, without a huge stovepipe hat but otherwise a typical Victorian, gazing at us sternly as eminent sitters for portrait photos usually did. No vapid smiles for the photographer: these were men of character, making no attempt to look cheerful. Glum, hirsute and even with a hint of anger, they seem to be saying: Look, I've just built The Great Western Railway and started work on the Oxford English Dictionary, and I've grown these terrific whiskers, you expect me to twinkle at you as well?



After the sixteen-course lunch our intrepid gormandiser takes a few hours rest then sets off in search of fresh fumets and frozen flakes new. At 9.30 he sits down at the other 3-star restaurant, Akelarre on the slopes of Monte Igeldo. He is not hungry, but nevertheless "ready to finish the task I had started". 
