Castle's Monkey Bar Where better a joint is there on the Western Front to ring in the new year of 1917? Where else in the world can you be served imported hooch by a trained-monkey bartender while getting blotto alongside the godfather of 1910s 'social influencers'? Vernon Castle, an Englishman living in America, had inherently more swagger than any Royal Flying Corps officer's swagger stick could imbue. He learned to fly in 1915, then immediately volunteered for the the RFC. He reputedly flew 300 combat missions [seems like a lot], felled two hostile planes, and was awarded the French Croix de Guerre (War Cross) for heroism.
But Castle was renowned well before that. He and his ballroom-dance-partner wife, Irene Castle, were nationally famous social trendsetters. They toured America and introduced the latest dance crazes. They were the original Fred Astaire and Ginger Rogers (in fact, that couple starred in a biopic of the Castles in 1939). The Castles were also patrons of African-American culture; among other fad dances, they codified and popularized the foxtrot, the most enduring dance of the jazz era. It's only natural that Vernon Castle would bring that party atmosphere with him to the war. Too bad he never got his lion.
(from the Clarksburg Sunday Telegraph, 31 December 1916):

.
Sidebar: Based in New York, Vernon Castle's other 'partner' was the pioneering black bandleader and composer James Reese Europe, who was the among the very first black musicians to make records, including blues and jazz tunes (all before 1920). Interestingly, Europe also joined the war, enlisting in the all-black 'Harlem Hellfighters' infantry regiment, which fought on the front lines France. There, Europe formed a regimental band and is credited with having introduced jazz to France. Europe is largely forgotten today, partly because his career was tragically cut short when he was stabbed in the neck by his own drummer during the intermission of a performance in 1919, and because the records he made were shellacked using the Pathé system, which cannot be played on conventional phonographs. Thankfully in the late 1990s someone invented a machine that could digitize Europe's old records. For your listening pleasure, here's a 1919 recording of Europe's song, 'On Patrol in No Man's Land', which he penned in hospital while recovering from a gas attack, and which he recorded just weeks before his death:
https://www.youtube.com/watch?v=yzc2SxA4rbcCheck out forum member pietro's scratch-built Curtiss JN-4 Canuck, which is similar to the one photographed behind Castle above:
https://forum.ww1aircraftmodels.com/index.php?topic=5995.msg108595#msg108595