Have a look at these great articles by @latelordchatham, featuring diary of Lt-Col Thomas Walsh, AAG to Eyre Coote in the Walcheren expedition. Walsh is a perfect example of the transnational #WildGeese diaspora. Born in France to a Irish Jacobite family..
https://www.jstor.org/stable/26899818?refreqid=excelsior%3Acc3728d9b945274d44d44015d6b17dcc&seq=1 https://twitter.com/latelordchatham/status/1359517597306388481
https://www.jstor.org/stable/26899818?refreqid=excelsior%3Acc3728d9b945274d44d44015d6b17dcc&seq=1 https://twitter.com/latelordchatham/status/1359517597306388481
Thomas' family had been staunch supporters of the Stuarts: his g-g-grandfather conveyed James II to France, whilst his grandfather Antoine Walsh transported Prince Charles Edward Stuart to Scotland in 1745. Antoine had built the family fortune in Nantes mostly with slave trading.
Thomas entered military life during the Revolution, joining the royalist émigré army, then the British forces in the experimental Catholic Irish Brigade (see link) & when that was disbanded in 1798 he transferred to the 27th Inniskilling & other regts. https://journals.sagepub.com/doi/abs/10.1177/0968344514559872?journalCode=wiha
He was appointed aide-de-camp to Coote during the Egyptian campaign, and then served in a number of regiments before his appointment as assistant adjunct general for the British expeditionary force under Lord Chatham and Coote in Walcheren in 1809. He died in 1810. #WildGeese
Thomas Walsh appears in a 'Descriptive Sketch of the Print of the Death of Gen: Sir Ralph Abercrombie', by John Peter Thompson, after Sir Robert Ker Porter. He's No. 29 below, peeking from behind Coote (No.31). All images: National Portrait Gallery https://www.npg.org.uk/collections/search/portrait/mw66424/Descriptive-Sketch-of-the-Print-of-the-Death-of-Gen-Sir-Ralph-Abercrombie?LinkID=mp122549&role=sit&rNo=1