occupants or events. The National Trust (which is a non-profit charity organization unlike English Heritage and English Heritage properties) has its own similar markers as well. The Dead Comics' Society installs blue plaques to commemorate the former residences of well-known comedians, including those of Sid James and John Le Mesurier. However, not all historical markers in the United Kingdom are blue, and many are not ceramic. A range of other commemorative plaque schemes, which are typically run by local councils and charitable bodies, exists throughout the United Kingdom. These tend to use their own criteria for determining the eligibility to put up a plaque. There are commemorative plaque schemes in Bath, Edinburgh, Brighton, Liverpool, Loughton, and elsewhere—some of which differ from the familiar blue plaque. A scheme in Manchester uses color-coded plaques to commemorate figures, with each of the colors corresponding to the person's occupation. The Purple Plaques/Placiau Porffor scheme in Wales uses purple to commemorate significant women. In 2003, the London Borough of Southwark started a plaque scheme which included living people in the awards. Even in London, the Westminster City Council runs a green plaque scheme which is run alongside that of the blue plaque scheme administered by English Heritage. Other schemes are run by civic societies, district or town councils, or local history groups, and often operate with different criteria. After the First World War, the families of British and British Empire (now Commonwealth) service men and women killed during the conflict were presented with bronze Memorial Plaques. The plaques, of about in diameter, were designed by the eminent sculptor and medallist, Edward Carter Preston. United States In the United States, various state governments have commemorative plaque schemes usually using the name historical markers. The National Trust for Historic Preservation or the U.S. Government, through the National Register of Historic Places, can bestow historical status. State programmes, such as the California Register of Historical Resources, allow designated sites to place their own markers. The criteria and circumstances through which a party administers the distribution of historical markers varies. For example, the "Preservation Worcester" program in Worcester, Massachusetts, allows a person to register their house or other structure of least fifty years of age if the building is well preserved, with retention of its original character and importance to the architectural, cultural or historical nature of the local neighborhood. One then pays a fee ($185 to $225) to