Author of "Lo! the Heavens Are Breaking" in The Mennonite Hymnary, published by the Board of Publication of the General Conference of the Mennonite Church of North America 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