Trethomas War Memorial and mosaic. The War Memorial is set back from the north side of Newport Road, on the corner of Navigation Street. In front of the memorial is a circular mosaic depicting mining tools. The War Memorial is dedicated to THE GALLANT MEN AND WOMEN OF TRETHOMAS WHO DIED FOR OUR FREEDOM IN THE TWO WORLD WARS The dedication then lists the names of the 12 local people killed in the 1914-1918 war, and the 17 killed in the 1939-1945 war. The dedication ends with WE WILL REMEMBER THEM.