Figure 28  A photograph showing plaster models of proposed terracotta gravemarkers. (Courtesy, Columbia University, Avery Architectural and Fine Arts Library, Columbia University in the City of New York and the Friends of Terracotta Collection.) These were made by the New York Architectural Terracotta Company, working at the request of a Mr. Henry Hiss, from Woodlawn Cemetery, New York, and date from 1915. It is not clear that the New York company pursued the idea any further, though markers had long been made informally by many firms.