Source: Michael Doyle Their Name Liveth For Evermore: The Great War Roll of Honour for Leicestershire and Rutland.
He was the son of Uriah Haddon and his wife Rhoda Elizabeth, who was the daughter of Thomas Linnitt. Joseph was educated at Theddingworth, Leicestershire, and on leaving became a Signalman on the London and North Western Railway. He enlisted in the Northampstonshire Yeomanry on the 1st June 1915, and was transferred to the Northamptonshire Regiment in September 1916. He served with the Expeditionary Force in France and Flanders from the 29th December 1916. On the 25th March 1917 he was invalided home suffering from trench feet, he rejoined his Regiment in France on the 7th September 1917 and was killed in action near Ypres, Belgium on the 26th March 1918, he was buried where he fell. Joseph was unmarried. It is more likely that Joseph lost his life during the withdrawal that was taking place due to the German March offensive, and was killed in action in France, this would explain his name being commemorated on the Pozieres Memorial in France, if the account quoted above was correct and he lost his life at Ypres then he would have been commemorated on the Menin Gate Memorial. The 2nd Battalion of the Northamptonshire Regiment were certainly, according to official accounts not in Belgium on the 26th March 1918.