noticed that the bricks blocking up a doorway differed from those of the structure itself and showed that such differences in building materials provided a key to the chronology of ancient structures. The Carnegie Institution published her preliminary findings in The Atrium Vestae (1909). Van Deman extended her research to other kinds of concrete and brick construction and published "Methods of Determining the Date of Roman Concrete Monuments" in The American Journal of Archaeology. Her basic methodology, with few modifications, became standard procedure in Roman archaeology. During her time in Rome up to 1925 she took many photographs of her work to record archaeology. Van Deman's major work, written after she retired and settled in Rome, was The Building of the Roman Aqueducts (1934). She died in Rome, Italy, on May 3, 1937. She is buried in the Protestant Cemetery in Rome, near the Porta Ostiense. At the time of her death, Van Deman was at work on a monograph-length study of Roman construction. Her work was completed and published by Marion Elizabeth Blake (1882–1961). Van Deman's nephew, Ralph Van Deman Magoffin (1874–1942), published a study of the Italian city of Praeneste. His interest in archaeology may have been sparked by his aunt. See also Marion Elizabeth Blake Louise Fitz Randolph Rostra Works "The Value of Vestal Statues as Originals", American Journal of Archaeology 12.3 (July-Sept. 1908) 324-342 The Atrium Vestae 1909 The So-Called Flavian Rostra 1909 "Methods of Determining the Date of Roman Concrete Monuments", American Journal of Archaeology. April–June 1912 The Porticus of Gaius and Lucius 1913 "The Sullan Forum", Journal of Roman Studies 1922 The Sacra Via of Nero 1925 The Building of the Roman Aqueducts 1934 Notes, citations and sources Notes Citations Sources External links Van Deman on WorldCat Van Deman Photograph Collection archived at the American Academy in Rome 1862 births 1937 deaths American archaeologists Classical archaeologists American classical scholars Women classical scholars Mount Holyoke College faculty University of Chicago alumni American women archaeologists University of Michigan alumni Classical scholars of the University of Michigan Burials in the Protestant Cemetery, Rome American expatriates in Italy Bryn Mawr School people American women academics