Correct! Although there were many important contributions from folks on the home front, the letters and packages from home probably meant the most to the soldiers.
This leather mailbag was used to carry letter and parcels to the front lines. The Canadian Postal Corps (CPC) delivered mail directly to the front lines whenever possible, even though it could be a dangerous task. The CPC often had to contend with bad weather, blown-up roads and rail lines, and enemy fire. Despite the many obstacles, the CPC delivered an enormous volume of overseas mail during the war years. In 1918 alone, the CPC delivered 43,136,750 letters and 1,396,000 parcels to Canadian troops fighting in France.