Exeter in Devon, England, United Kingdom — Northwestern Europe (the British Isles)
Alexander Cavalié Mercer
Alexander Cavalié Mercer, then a 2nd Captain, is arguably the most famous junior officer who fought at the Battle of Waterloo on 18th June 1815.
Mercer's 'Journal of the Waterloo Campaign', published in 1870 by his son, Cavalié Mercer, is the finest witness account of the campaign. Two hundred years later, his Journal is much admired, quoted and debated by historians and enthusiasts.
The Journal tells of Mercer's leadership of 'G' Troop Royal Horse Artillery, from the breaking news of Napoleon's escape from Elba, through the preparations for war, to the engagements of 16th, 17th and 18th of June 1815.
Mercer's command comprised five guns and one howitzer, served by 4 officers, a surgeon, 23 NCOs and artificers, 80 gunners, 84 drivers, 220 horses and 6 mules, together with a forge, supply carriages, carts and wagons.
'G' Troop formed the rearguard artillery on the 17th of June before achieving conspicuous success on the 18th at Waterloo, partly in defiance of the Duke of Wellington's orders. The Journal continues with the march into France and the occupation of Paris by the victorious allies.
Mercer's Journal vividly portrays the countryside of Belgium, the architecture, his colleagues, the local populace and the sensations of battle. It mentions his old dog Bal and his little horse Cossack, who both accompanied him on campaign. The Journal demonstrates the many qualities of its author, his culture, sensitivity, humour, professionalism, bravery honesty and compassion. Mercer noted after the battle: "Long did I stare at this sad and solemn spectacle. All this misery to satisfy the ambition of a single man."
After Waterloo Mercer served in British North America before being appointed commander of Royal Artillery, Kent District, based at Dover Castle. Many of his fine watercolours are now treasured by Canadians as an early record of their nation's history.
Commissioned into the Royal Artillery at the age of 16, Mercer's diary fondly recalls his early visits to Exeter. By 1850 he had established a home in Exeter at Cowley Cottage, Cowley Hill. His sister Theodosia lived nearby in the Parish of Elmgrove. Their father, General Alexander Mercer of the Royal Engineers is buried in Exeter Cathedral.
Today Mercer and his men are remembered through the Honour Title awarded to and proudly celebrated by his troop, G Parachute Battery (Mercer's Troop), 7 Para, RHA.
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The gravestone was carefully restored in 2015, on the 200th commemoration of Waterloo, to mark the admiration felt by many towards Cavalié Mercer.
Topics. This historical marker is listed in these topic lists: Patriots & Patriotism • Wars, Non-US. A significant historical year for this entry is 1868.
Location. 50° 43.659′ N, 3° 32.28′ W. Marker is in Exeter, England, in Devon. It can be reached from Hele Road. In St David's churchyard. Touch for map. Marker is at or near this postal address: 1 Hele Road, Exeter, England EX4 4JS, United Kingdom. Touch for directions.
Regionally, this marker is in South West England. Globally, it is on the Atlantic Ocean, in the North Atlantic Region, in Europe, in Atlantic Europe, on one of the British Isles, in the Western World, and in the Anglosphere. Historically, it finds itself in what was once the Roman Empire.
Other nearby markers. At least 8 other markers are within 11 kilometers of this marker, measured as the crow flies: Catacomb (approx. 0.6 kilometers away); St Nicholas Priory (approx. 0.7 kilometers away); Cathedral Yard (approx. 0.7 kilometers away); Exeter and the Wesleyan Revival (approx. 0.7 kilometers away); Philip Freeman/Friedman Wartime Firewatcher (approx. 2.2 kilometers away); Crediton Station (approx. 9.8 kilometers away); Joseph Locke 1805-1860 (approx. 9.8 kilometers away); The building and opening of the Crediton to Exeter trainline (approx. 9.8 kilometers away). Touch for a list and map of all markers in Exeter.
Credits. This page was last revised on June 4, 2025. It was originally submitted on May 20, 2025, by Ray Gurganus of Washington, District of Columbia. This page has been viewed 123 times since then and 27 times this year. Photos: 1, 2. submitted on May 20, 2025, by Ray Gurganus of Washington, District of Columbia. • Andrew Ruppenstein was the editor who published this page.

