Michael P. Betsinger (Mike) received his undergraduate degree in Anthropology from the Minnesota State University of Moorhead (2019), then completed his graduate work at the University of Maryland, College Park (M.A. 2023, Ph.D. 2025). Before coming to the OSA, he previously worked in Minnesota, Maryland, Virginia, and Washington, D.C. In addition to his archaeological fieldwork experience, he has a background in cemetery preservation, public archaeology, and teaching.

Alan Hawkins received his undergraduate and graduate degrees in Anthropology from the University of Arkansas in Fayetteville (B.A. 1991, M.A. 1997). Alan joined the OSA in 1998 and has been active in cultural resource management and archaeological research in the Midwest, Mississippi Valley, and Plains for over 30 years.

Warren Davis is a research archaeologist at the OSA, conducting archaeological research for contract-funded projects that includes background historic research, field surveys and excavations, and report writing.

Angela Collins has been conducting archaeology in Iowa since 2001. Her specialized skills involve material analysis with pXRF and ceramic petrography, as well as aerial thermography utilizing a small uncrewed aerial system (drone) as an FAA-licensed drone pilot. At OSA, Angela leads archaeological field surveys and excavations, prepares National Register of Historic Places nominations, and conducts research on various precontact and postcontact topics. She is an artifact illustrator, graphic artist, website designer, and digital publisher for the OSA, producing numerous posters, brochures, and booklets, as well as editions of the OSA Report Series.