Source: Michael Doyle Their Name Liveth For Evermore: The Great War Roll of Honour for Leicestershire and Rutland.
John Mosse was born in 1861 in Attanagh, County Kilkenny, Ireland. In April 1891 He was serving as a Captain with the 2nd Battalion Leicestershire Regiment and was residing at Askby House, Warley Road, South Weald, Billericay, Essex, together with his wife Catharine Elizabeth Mosse, born 1860 in Paddington, Middlesex, and their son John Wilford E. Mosse, born 1891 in Kensington, Middlesex, also residing in the family home were John’s sisters, Sophia, born 1864 and Edith, born 1865, both his sisters were born in County Kilkenny, Ireland. In March 1901 John was a retired Major, and was residing in the family home at Dilkusha, Kent Road, Harrogate, Yorkshire, together with his wife and children, John and Helen Lydia Catharine Shield, born 1892 in Worley, Essex. In April 191 John was a retired Major and was residing in the family home at 8, Merton Road, Bedford, together with his wife and daughter. John was the Commanding Officer of the Depot of the Leicestershire Regiment at the time of his death.
On Friday June 23rd 1916 The Melton Mowbray Times & Vale of Belvoir Gazette published the following article under the heading. “DISTRICT WAR ITEMS.” – DEATH OF LIEUT.-COL. J. MOSSE. The death occurred with painful suddenness on Saturday afternoon, of Lieut.-Col. J. Mosse, Commanding Officer at Glen Parva Barracks, near Leicester. Colonel Mosse was engaged in his office at the barracks at about a quarter to five, together with several other officers, when he was taken suddenly ill, and expired almost immediately. Colonel Mosse, who succeeded Colonel Burn in command of the depot, early in the war, served his military career in the Leicestershire Regiment, taking part in the South African Campaign, during which he held the rank of Captain. He retired some years later, but returned to active duties on the outbreak of hostilities. In the local recruiting campaign, he worked with the greatest zeal, frequently appearing and speaking on public platforms in the Market-place and on the Victoria Park, and he was always an exceedingly popular officer. He leaves a widow, daughter, and one son, Captain Mosse who is at the front with the Leicestershire Regiment.