The Newfoundland armed forces suffered devastating losses during World War I. Known unto God is a memorial to the men in these forces who died during the war and who have no known graves. The book is also a companion guide to the Memorial Bronze Tablets that list their names. The tablets were first unveiled at the Newfoundland Memorial Park in Beaumont-Hamel, France, in 1925. Replicas of the tablets were erected in 2009 in Bowring Park in St. John's, Newfoundland and Labrador. Known unto God celebrates these men's contributions and includes period memorabilia and photographs from private and public collections, some of which have never been published.