Martin G. Dudek
Principal Archeologist

Martin Dudek received his master's degree in anthropology from Brandeis University in 1992. Mr. Dudek's principal area of concentration is the prehistoric and historic archeology of the northeastern United States, with emphases on nineteenth-century consumer behavior, ceramic and lithic analysis, and early Holocene settlement patterns in New England. His field experience ranges from Mesoamerica, Alaska, and California to the Northeast. Key projects include five data recoveries for the Central Artery/Tunnel project in Boston, and the Walnut Hill and Whortleberry Hill data recoveries in Massachusetts. Mr. Dudek joined JMA in 2005, and has over twenty-five years of archeological experience.

Juliette J. Gerhardt
Principal Archeologist
Laboratory Supervisor
Associate

Juliette Gerhardt holds a master's degree in anthropology from the University of Texas at Austin. Ms. Gerhardt has over thirty years of experience in archeology in the United States, England, and Central America with emphases on military, urban, and domestic historic sites. She has extensive experience in the cataloging and analysis of archeological collections, including the Automated National Cataloguing System (ANCS+) for National Park Service collections. A focus of Ms. Gerhardt's research interests is nineteenth-century ceramics and Philadelphia redware. Since joining JMA in 1993, key projects have included archeological investigations at Independence Mall, Philadelphia, and the United States Federal Building and Courthouse, Wheeling, West Virginia.




Robert G. Kingsley, Ph.D.
Principal Archeologist
Senior Associate

Robert Kingsley received his doctorate in anthropology from Michigan State University in 1985. Dr. Kingsley's principal area of concentration is the prehistoric archeology of the eastern United States, with emphases on ceramic and lithic analysis, settlement systems, and the study of prehistoric socio-political structures. His field experience ranges from the Plains and Midwest to the Northeast. Key projects include data recovery at the Joyner site in Rhode Island, and the Schuylkill Valley Synthesis project and data recovery at the Oberly Island site in Pennsylvania. Dr. Kingsley joined JMA in 1987, and has over thirty-five years of archeological experience.




Timothy C. Lloyd, Ph.D., RPA
Principal Archeologist

Tim Lloyd received his doctorate in anthropology from the University at Albany, SUNY, in 2002 and joined JMA’s staff in 2003. Dr. Lloyd’s research focus is the prehistoric archeology of the Eastern Woodlands, with further focus on mortuary archeology, lithic analysis, GIS applications in archeology, and the history of American archeology. Dr. Lloyd has 20 years of experience in cultural resource management in the Northeast and Midwest. His most notable project since joining JMA was the Rockies Express-East pipeline, a multi-year project involving architectural evaluations, geomorphological evaluations, archeological survey, and data recovery excavations along the Illinois and Indiana portions of a proposed FERC-regulated natural gas pipeline.




Rebecca Yamin, Ph.D.
Principal Archeologist
Senior Associate

Rebecca Yamin received her doctorate in anthropology from New York University in 1988. Since joining JMA in 1992, she has specialized in urban archeology. Her major projects include the Five Points site in New York City and the sites of two new buildings on Independence Mall in Philadelphia. During her thirty years of experience, Dr. Yamin has developed a variety of outreach programs including hands-on programs for children, on-site interpretation, artifact exhibits, and web pages. She is particularly interested in writing for all kinds of audiences and has published in popular magazines as well as technical journals.



Grace H. Ziesing, RPA
Principal Archeologist

Grace Ziesing received her master’s degree in 1991 from Boston University’s Department of Archaeology with a specialization in New World Historical Archaeology. Her primary area of concentration is nineteenth-century rural archeology. Key projects include investigations at several historic houses in Valley Forge National Historical Park, Pennsylvania; the U.S. Route 113 planning study, Delaware; and the Los Vaqueros reservoir project in California. Ms. Ziesing is also skilled in the use of GPS hardware and software for mapping archeological resources and has experience in the development of GIS for cultural resources. She joined JMA in 2003 and has more than 15 years' experience in cultural resources management.


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