Maurice Johnson was born in Heeley on 21 August 1892, the son of William Arthur and Frances Emily Johnson. Maurice was one of ten children only five of whom were still alive by the time of the 1911 census. In 1902 the family moved to Totley where William became Marker and Cellarman at the Rifle Range at Lane Head.
Maurice, along with his brother Robert and sister Grace, had formerly been pupils at Lowfield Board School. In 1902 their names were entered into the admissions register of Totley School. Maurice remained there until August 1906 when he left to become an apprentice steel wire drawer.
The Queen's Own Yorkshire Dragoons was a territorial unit and 'A' Squadron had its headquarters in Sheffield. Maurice's first army number of 2759 indicates that he joined up on 1 January 1914, so he would have been called up immediately on the outbreak of war on 3 August 1914. 'A' Squadron was attached to the 17th (Northern) Division at Winchester and on 16 July 1915 they landed at Le Have in France and took part in the fighting on the Ypres Salient.