As Viscount Newry, he was commissioned Cornet in the North Shropshire Yeomanry Cavalry in 1865,[REF] then promoted Captain in 1871,[REF] before the Cavalry were merged into the unified Shropshire Yeomanry regiment.
After the accession of King Edward VII in 1901, Lord Kilmorey was appointed Aide-de-camp (Supernumerary) to His Majesty for the service of His Yeomanry Force.