d. In his long career Wallis served during the War of 1812 and as second lieutenant of , was present at the capture of USS "Chesapeake", and commanded the prize crew that took her to Halifax. His time in command qualified him for further promotions before the end of the Napoleonic Wars, and he rose to the rank of admiral in 1863, and admiral of the fleet in 1877. The Admiralty suggested he retire when he reached his nineties, as being on the active list meant he was liable for calling up for a seagoing command. Wallis instead replied he was ready to accept one, and remained on the active list until his death in 1892.