“Dear Mother and Dad,
Just a line to let you know that I am O.K. You notice on the other side my change in address. It means that I am going to be promoted to Major very soon I guess. You had better get in touch with Milly though because she can tell you a lot of things. Before you send me anything for Xmas talk to her. Greet all my friends back there for me, and especially greet Elaine and Doug after you have talked to Milly.
P.S. ‘Everything O.K.’”