One aspect of my current research focuses on the development, validation, and application of an adult age-at-death estimation method - Transition Analysis method (Boldsen et al. 2002) - and many binary traits throughout the skeleton in a new method called TA3. Individually and as part of an international research team, I have collected data from skeletons from over 5,000 skeletons from many of the world's well-documented skeletal collections. 

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Modern

•William M. Bass Donated Collection - University of Tennessee, Knoxville, TN

•Maxwell Museum Donated Collection - University of New Mexico, Albuquerque, NM

•Athens Human Collection – University of Athens, Athens, Greece

•Pretoria Bone Collection - University of Pretoria, Pretoria, South Africa

•Chiang Mai Donated Collection - Chiang Mai University, Chiang Mai, Thailand

•Bocage Museum Collection - Lisbon Natural History & Science Museum, Lisbon, Portugal

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Anatomical (early 20th century)

•Terry Collection - Smithsonian National Museum of Natural History, Washington DC

•Hamman-Todd Collection - Cleveland Museum of Natural History, Cleveland, OH

•UI-Stanford Collection - University of Iowa, Iowa City, IA

•JCB Grant Collection - University of Toronto, Toronto, Ontario

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Historical & Archaeological

•St. Bride’s Crypt -  St. Bride's Church, London, UK

•Norris Farms - Illinois State Museum at Penn State

•Ole Worms Gade  - Odense, Denmark

•Klosterkirke - Odense, Denmark