Chef de Brigade Etienne Gerard was a hero of the Napoleonic Wars, and a cousin of the more famous Marshal of France (later Prime Minister) of the same name. The Emperor himself said of Gerard that he had had the stoutest heart of all the army.... and also the thickest head. His memoirs - which are a joy to read, for however lovable Gerard is, the reader can see through his pride to recognise his folly and self-delusion - were published for an English audience by Arthur Conan Doyle:
- The Exploits of Brigadier Gerard
- Adventures of Gerard
- "The Marriage of the Brigadier"
Gerard also appears in Conan Doyle's novel Uncle Bernac.
In Doc Savage: His Apocalyptic Life, Philip José Farmer notes that Monique Delacroix, the Swiss mother of James Bond, is a descendent of Gerard through the latter's marriage to Sybil Bernac (from Uncle Bernac; "The Marriage of the Brigadier" recounts an earlier short-lived union); he states that they had several daughters including one who married a French-speaking Swiss. In the same book, Farmer suggests that Etienne Gerard was the brother of the Marie Gerard who married one of the most notorious instruments of the Terror, Citizen Chauvelin.
In The Anomaly of the Empty Man by Anthony Boucher, it is stated that Brigadier Gerard is the great-uncle of Dr. Horace Verner.