On 11 April 1912, John Adams (real name Richard May) posted a card to his sister in Holsworthy, Devon. It read -

"Dear Ethel, Just a few lines to tell you that I have found Jack and we are going on all right. We are having it fairly calm. Are we downhearted? No! Goodbye. With fondest love from your loving friend, Richard."

It is interesting to note that he signed off using his real name, he obviously wanted no one but his family to identify him. On the original card the name 'Richard' was crossed out.
The 'Jack' referred to was John Henry Perkin of Holsworthy who was Ethel's fiance.