GSAR Staff

Dr. Michael Collins

Chairman Emeritus


Dr. Michael B. Collins is a Research Research Associate with the Texas Archeological Research Laboratory at the University of Texas at Austin. He has specialized in the study of lithic technology and worked with prehistoric collections from North, Central, and South America, as well as the Near East and southwestern Europe. He collaborated on the lithics research for the pre-Clovis site of Monte Verde, Chile. Dr. Collins is currently active in research on the earliest part of the American archaeological record and published Clovis Blade Technology (UT Press) and Clovis Technology (International Monographs in Prehistory).

Dr. Sergio Ayala

Executive Director

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Sergio brings scientific illustration, lithic analysis, fieldwork, and research-focused flint knapping to the GSAR. He received a Bachelors of Science degree at Texas State University and currently an archaeology graduate student at the University of Exeter under Dr. Bruce Bradley. Sergio’s research integrates the complimentary fields of experimental flint knapping with lithic analysis. His research topics are the Early-Middle Archaic Calf-Creek Horizon people and the highly specialized North American tool industries to discern their causes and context. Sergio is active in public outreach and public speaking, giving Gault site tours, visiting Texas land owners, K-12 career day talks, and flint knapping demonstrations. Examples of Sergio's replication work can be seen at the Meadows Center in San Marcos, Texas.


Jennifer Gandy

Lab Director

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Jennifer is a lithic analyst specializing in the examination of debitage ranging in size from one eighth of an inch and larger. She received her BA in Anthropology at Millsaps College in Jackson, MS. After interning for R. Christopher Goodwin & Associates, Inc. in New Orleans, LA, she decided to pursue her Master’s degree. Her interest in the archaeological study of the peopling of the Americas led her to Texas State University, and Dr. Collins, who encouraged her to analyze debitage from below Clovis in Area 15 of the Gault Site. Having completed her MA at Texas State, she is continuing her MA research; primarily focusing on determining where the Clovis and “Older-than-Clovis” stratigraphic layers begin and end in each area.

Dr. Steve Howard

Field Director

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Steve is the Field Director for the Gault School. In addition to his recent work in Texas, he has directed fieldwork in New York and Ohio, at sites dating from the middle and Late Woodland periods. His dissertation work at The Ohio State University involved several analyses of Middle Woodland mortuary mound-building behavior in the upper Allegheny Valley of Pennsylvania and New York. He currently runs a summer public archaeology program in New York in collaboration with the Seneca Nation Tribal Historic preservation Office and local educational institutions. Here in Texas, he also enjoys teaching, as an adjunct professor at Austin Community College.


Alan M. Slade

Research Associate

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Alan is currently a postdoctoral researcher with the University of Texas at Austin, Texas Archaeological Research Laboratory (TARL) and is also a member of the team that heads the Prehistory Research Project. Alan spent fifteen years as a Prehistoric and Palaeolithic field archaeologist in Britain and Europe, and a further decade helping to curate the lithic collections in the British Museum. In 2007 Alan became interested in Early Paleoindian archaeology, soon to be known as the Upper Paleolithic of North America, and in particular Clovis. Alan spent six years studying the Clovis fluted points in collections across North America, largely facilitated and encouraged by Dennis Stanford of the Smithsonian Institution. Dr. Michael Collins invited Alan to continue his analysis of Clovis fluted point technology and to become a lithic analyst for the project in 2019. Alan was educated in London at UCL's Institute of Archaeology, and at the University of Southampton. He is a research fellow of the Centre for the Archaeology of Human Origins (CAHO) and is on the committee for the Lithic Studies Society (LSS).


GSAR Research Associates


Dr. Bruce Bradley

Co-Principal Investigator


Dr. Bradley is Emeritus Professor of Prehistory and Director of the Experimental Archaeology Masters Programme at the University of Exeter (UK). He has extensive experience with Stone Age technologies and experimental archaeology and has done research in the U.S. France, Russia and Central Asia. Bruce is also active in bringing his archaeological and anthropological interests to the public through presentations, teaching, interaction with Native American communities and participation in documentaries.

Nancy Velchoff

Co-Principal Investigator

Nancy Velchoff is the Principal Investigator for the Spokane Tribe of Indians and a Co-principal investigator of the Gault Site. She has worked at the Gault Site since 2008 and has experience studying lithic collections in Europe and South America. Nancy managed and directed the excavations at the Gault site for 4 years (2008-2012) before joining the analytical team and becoming the Lab Director. She specializes in Clovis lithic technology, debitage studies, and archaeological illustration. She obtained her MPhil in Archaeology from the University of Exeter, UK. She has published her work in a number of books and articles.


Dr. D. Clark Wernecke

Research Associate


Clark Wernecke is the Executive Director for the Gault School. Dr. Wernecke brings a unique blend of scholarship and experience to the project with degrees in history, business and anthropology. He has considerable experience in business and has specialized in the management of large archaeological projects. Dr. Wernecke has worked in the Middle East, Mesoamerica, the American Southeast and Southwest, and Texas. In addition to his work with the GSAR, he is currently working on archaeological data from the Mexican War and early Texas architecture.

Dr. Tom Williams

Research Associate


Tom is the Assistant Executive Director of the Gault School of Archaeological Research and the Project Archaeologist working on the oldest cultural materials recovered from the Gault Site. He has worked on the Gault Site collections for the past 10 years and has published on these early materials. His research focus is the earliest human occupations of the Americas and specifically the stone tool technology, manufacturing processes and broader patterns in global human expansion.


Marilyn Shoberg

Usewear Analyst


Marilyn Shoberg does microscopic use-wear analysis, primarily on stone tools from the Gault site. She has previously worked on a number of pueblo sites in the American southwest and Mission Espiritu Santo in Texas. Her MA from the University of Texas at Austin involved Mogollon settlement systems in southern New Mexico.

Dr. Robert Lassen

Research Associate

Dr. Lassen is an archaeologist with AmaTerra in Austin. He is a lithic analyst and experienced flintknapper. He has a BA in Sociology from Southwestern, an MA in Anthropology from TAMU and got his PhD from the University of Tennessee. Robert has been examining Folsom and Midland as well as the Late Paleoindian technologies in Texas.

In Memoriam


Mike Quigg

Staff Archaeologist

Quigg brings 29 years of Texas archaeological experience to the Gault project. He has an MA in archaeology from the University of Calgary, Alberta. He has diverse experience in Plains archeology, hunter-gatherer sites and assemblages, and a background in multidisciplinary approaches to projects. He has spent most of his career with various CRM firms in diverse roles, developing skills in managing projects, directing analyses, and writing technical reports. Much of his work has involved extensive research into burned rock features and extracting data from those features.