This is the brief history of the 47th (1st/2nd London) Division, a peacetime Territorial division which mobilised on the outbreak of war. The podcast follows its movements and engagements from its deployment overseas in February 1915, through its campaigns in France and Flanders, until the end of the war.
I recommend using the Long Long Trail website by Chris Baker, if you need to find out which division your chosen unit or soldier served with.