The Principals of Pacific Legacy work together as a cohesive unit. Pacific Legacy began in 1994 but our professional association extends far beyond. Pacific Legacy has grown into one of the largest and most successful cultural resource management firms in the western United States and Pacific.  Each of us brings unparalleled expertise and experience in various aspects of archaeology and cultural resource management.Together, we comprise an unsurpassed leadership team with comprehensive skills in regulatory compliance, and archaeological method and theory.

Hannah Ballard, MA
Senior Historical Archaeologist

Hannah Ballard is a Senior Archaeologist specializing in Historical Archaeology for Pacific Legacy.  She received her M.A. in Cultural Resources Management from Sonoma State University in May 2003.  Ms. Ballard has worked on numerous projects in Northern, Central, and Southern California and in Hawai`i. These projects include small and large surveys, record and information searches, historical context research and writing, cultural landscape analysis, excavation at the testing and data recovery levels, and prehistoric and historical site recording, excavation, and evaluation for the National Register of Historic Places and the California Register of Historical Resources.

Paul Cleghorn, PhD
Senior Archaeologist and Pacific Basin Leader

Paul Cleghorn has conducted archaeological investigations in Hawai`i, American Samoa, New Zealand, the Solomon Islands, Guam, and Saipan since 1973. He has held research and teaching positions at the Bishop Museum, the University of Auckland, and the University of Hawai`i at Manoa. Dr. Cleghorn is experienced in the National Historic Preservation Act Section 106 review process, and he enjoys a close and positive working relationship with the State Historic Preservation Division in Hawai`i and the Historic Preservation Offices of American Samoa, Guam, and Saipan. He is certified (40-hr HAZWOPER) to work at sites where hazardous waste/materials are an issue. He has conducted and directed all aspects of archaeological field investigations, including inventory, evaluation and treatment, site restoration, and interpretation.  Cleghorn has authored 100s of reports and has prepared a wide variety of plans to treat cultural resources.  He has extensive experience in Native Hawaiian consultation. Dr. Cleghorn has special technical expertise in lithic technology and experimental archaeology.

Robert Jackson, MA/RPA
Senior Archaeologist and
Sierra/Central Valley Leader

Robert J. Jackson has taught courses on Federal Projects and Historic Preservation Law for agencies such as the Federal Advisory Council on Historic Preservation, the California Department of Transportation and USDA Forest Service. He served for six years in the California Department of Parks and Recreation, Office of Historic Preservation, conducting project review for all federally permitted projects in California and has more than 30 years of cultural resources management experience in California and the Great Basin. Rob Jackson is a nationally recognized expert in historic preservation regulatory compliance. From 1988-2001, he regularly taught the course Federal Projects and Historic Preservation Law for the Advisory Council on Historic Preservation and General Services Administration. He also authored the Framework for Archaeological Research and Management prepared for the National Forests of the north-central Sierra Nevada in California, a program recognized nationally by the USDA Forest Service as a model. He recently authored nationwide Programmatic Agreements (PA’s) for various federal agencies, and recently penned a nationwide PA for all agencies of the departments of Agriculture and Interior for the management of cultural resources during fire management undertakings. In recognition of his contributions, the Society for American Archaeology (SCA) presented him with the 2002 Award for Excellence in Cultural Resource Management; in 2002, Rob was awarded with the prestigious Crystal Owl Award for Training and Development Excellence (Outstanding Individual Effort); and in 2016 the SCA recognized him with the Thomas F. King Award for Excellence in Cultural Resources Management

John Holson, MA/RPA
Senior Archaeologist and Bay Area Leader

John J. Holson specializes in California Environmental Quality Act (CEQA) compliance for historical preservation. With more than 30 years of cultural resources management experience in California, Oregon, Nevada, Hawai’i, and Europe, he is widely recognized for his innovative approaches in working with project stakeholders to achieve historical preservation goals and objectives within the regulatory process. John’s professional expertise includes: linear facilities project management (pipelines; highways; electrical transmission lines); management of multiple task indefinite delivery/quantity (on-call) type contracts; preparation of archaeological research designs and Historic Properties Treatment Plans; design and execution of archaeological reconnaissance, survey, test excavation, construction monitoring and data recovery projects; and California and Hawaii archaeology, ethnography and cultural resources management. He has extensive experience with public parks planning and resource studies. He is currently Principal Investigator for three projects in Yosemite Valley for NPS and two projects, Coe Park and Angel Island, in the California State Parks System.

Samantha Schell, BA
Director of Business Development

Ms. Schell received her BA in Anthropology in 1994 at the University of California, Berkeley and has worked with Pacific Legacy since 1997. Her roles have included lab director, osteologist, and archaeological technician. While Ms. Schell remains passionate about archaeology, her interpersonal skills and competitive nature make her a natural at team building and project pursuit.

Ms. Schell serves as their legislative liaison for the Society for California Archaeology. In addition she has been a co-instructor for osteological workshops at the Society of California Archaeology Annual Meetings in 2011, 2013, 2015, and 2017.



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