The above card shows that William R Henderson was in the Suffolk Regiment as a Private and as a Corporal, with the Regimental Number 3/10112. He was also in the Labour Corps as a Corporal with Regimental Number 78882. The entries are usually in chronological order, but this is not always the case. Men were often transferred to the Labour Corps if they had been injured, but not severely enough to warrant a medical discharge.
He is shown as having been awarded three campaign medals - the Victory Medal, the British War Medal, and the 1915 Star. The references to the relevant Medal Rolls are given in each case, and these can be checked to see if there is more information.
Cpl Henderson arrived in France on 25 Jul 1915, and this date may be useful in determining which battalion he was in. The remarks section says that he was killed in action on the 20th June 1917, but the date of death is often missed out.
This is another type of card, and here we can see that S/40478 Private Willie Hargreaves of the Cameron Highlanders was enlisted on 26 Oct 1914 and discharged on 4 Jul 1918. The reason given for his discharge is King's Regulations, paragraph 392 xvi 2 (b1). The reasons for discharge in King's Regulations were amended throughout the war, but paragraph 392 xvi was "Having been found medically unfit for further service".
The entry List G/A/340 indicates that he was issued a Silver War Badge, and in general terms this was issued to officers and soldiers who had either left the army during the war as being over the age limit, or who had been medically discharged. The exact rules for qualification changed as war progressed.
He was issued two medals - the Victory Medal and the British War Medal - and the same Medal Roll covers both.