Marie-Therese Barrett is an Archaeology and Paleoecology PhD candidate at Queen's University Belfast. She has been an archaeologist for the past 14 years. Her primary research interests are based on the history and archaeology of early medieval settlement in Ireland. Her research also encompasses scientific dating methods, primarily dendrochronology (tree-ring dating). As well as her academic research Marie-Therese has been a field archaeologist for a number of years and has been involved in a number of early medieval excavations in Ireland. Her doctoral research is focused on using dendrochronology to examine an early medieval crannog (lake dwelling).