However, before this could occur, John Saunders would die, leaving the Lieutenant-Colonelcy vacant. Major Domville, a member of the regiment for only two years, would be appointed commanding officer in 1880. Domville would command the Regiment for nineteen years, becoming the longest serving Commanding Officer in the Regiment's history. Under his leadership, the 8th Hussars became one of the most highly respected cavalry regiments across Canada.
Besides this, Domville was active in several business pursuits in his adoptive province and across the continent. He helped develop the Albert County shale fields. He also financed a steam ship that carried passengers to the Yukon during the Klondike Gold Rush. As well, on the 14th Dominion Day, i.e., Canada Day, Lieutenant-Colonel James Domville would parade down Broad Street of Sussex. He would be one of 3000 soldiers that turned out to celebrate with the Governor-General. The impact of nineteen years of service would leave an indelible impact on the regiment, and contribute to its future successes.