Richard Wellesley, 1st Marquess Wellesley honours devolved on his brother William, Lord Maryborough, on the failure of whose issue in 1863 they fell to the 2nd Duke of Wellington. He and Arthur, after a long estrangement, had been once more on friendly terms for some years: Arthur wept at the funeral, and said that he knew of no honour greater than being Lord Wellesley's brother. The Township of Wellesley, in Ontario, Canada, was named in Richard Wellesley's honour, despite the many references (e.g.: Waterloo, Wellington County) to his brother, Arthur Wellesley in the surrounding area, as was Wellesley Island, located in the St. Lawrence river
Lord George Wellesley Military Cross in 1916. Lord Arthur Wellesley married Louise Nesta Pamela FitzGerald, daughter of Sir Maurice FitzGerald, 2nd Baronet, and Amelia Catherine Bischoffsheim, on 12 March 1917 at Saint Thomas Church in Manhattan, New York City. She was the widow of his elder brother Richard. Lord Arthur Wellesley was appointed a wing commander in the RFC, with the temporary rank of lieutenant colonel, on 1 October 1917. He gained the rank of squadron leader in 1939 in the service of the Royal Air Force Volunteer Reserve (RAFVR). He fought in the Second World War between 1939 and 1945. He was