Darby C. Stapp (B.A., University of Denver; M.A. University of Idaho; Ph.D. University of Pennsylvania) and Julia G. Longenecker (B.A., University of Wyoming; M.A., University of Idaho) began their archaeological careers during the 1970s in the Rocky Mountain region of North America. Since then they have worked in Gujarat, India, and the U.S. states of Colorado, Georgia, Idaho, Mississippi, Oregon, Pennsylvania, Texas, Washington, and Wyoming. They have worked for a variety of institutions, including the Smithsonian National Museum of Natural History; the University Museum, University of Pennsylvania; and universities, state and federal agencies, and American Indian tribes across the West. Their work over the last thirty years has encompassed all aspects of construction projects, numbering in the hundreds, to ensure protection of archaeological and other heritage resources. They have been directly involved in several high profile archaeological disasters, including the Kennewick Man case, the Blaine Wastewater Treatments Plant Expansion project, and the Manhattan Project landfill project. Both are Registered Professional Archaeologists (www.rpanet.org).