Person Name: Anon. Author of "O how I long with Christ to be" in The Seventh-Day Adventist Hymn and Tune Book In some hymnals, the editors noted that a hymn's author is unknown to them, and so this artificial "person" entry is used to reflect that fact. Obviously, the hymns attributed to "Author Unknown" "Unknown" or "Anonymous" could have been written by many people over a span of many centuries.
Anonymous