During the First World War, letters were the main form of communication between the battlefront and the home front. The letters travelled via sea mail and were subject to loss from attacks by German U-Boats. They were also subject to significant, though somewhat random, censoring by the military. Jack and his brothers wrote letters home often.
Jack writes to seek his sister Lizzie's support in enlisting.
Charles writes home to Lizzie about his experience in the "Bombers".
Jack writes a quick note home to his mother while serving in France in 1917.