Our People


ASM’s Principals, Directors, Archaeologists, Architectural Historians, and other technical staff have decades of professional and educational experience in cultural and heritage resources management. Through their experience, our technical experts have obtained the knowledge necessary to successfully complete projects, maintain safe practices, comply with legal requirements, and keep projects on schedule.

Principals and Directors

Brian Williams, M.M.A.

Brian Williams, M.M.A.


David Mayes, M.S., M.B.A.

David Mayes, M.S., M.B.A.


Shelby Castells, M.A. - Archaeologist

Shelby Castells, M.A. - Archaeologist

RPA | Director, San Diego Office

Matt Clark, M.A. - Archaeologist

Matt Clark, M.A. - Archaeologist

Director, Hilo Office

Dave Iversen, M.A. - Archaeologist

Dave Iversen, M.A. - Archaeologist

RPA | Director, Stanwood Office

Shannon Davis, M.A. - Architectural Historian / Historian

Shannon Davis, M.A. - Architectural Historian / Historian

RPH | Director, History Group

Peter Carey, M.A. - Archaeologist

Peter Carey, M.A. - Archaeologist

RPA | Director, Central Valley

Edward Stoner, M.A. - Archaeologist

Edward Stoner, M.A. - Archaeologist

RPA | Director, Reno Office

Brennan Bajdek, M.A. - Archaeologist

Brennan Bajdek, M.A. - Archaeologist

RPA | Director, Eugene Office

Nick Belluzzo, M.A. - Archaeologist

Nick Belluzzo, M.A. - Archaeologist

RPA | Director, Honolulu Office


With experts in local archaeology and historic preservation, ASM staff have established long-term relationships with regional stakeholders including local preservation groups, tribal nations, and local, state and federal agencies.

Safety & Training

As part of ASM’s business philosophy, we provide in-house and off-site training to all of our employees in order to stay up to date on case law, safety techniques, advanced technologies, and successful business practices. We are are a registered ISNetworld and A-graded vendor for numerous clients.

Staff Qualifications

All of ASM’s Principals, Directors and Senior Technical Specialists hold advanced degrees and exceed the Secretary of the Interior’s (SOIs) Professional Qualifications Standards for their respective fields.

Additional Staff

Our staffing capabilities include sufficient personnel to conduct multiple projects simultaneously while maintaining delivery of high-quality products. ASM provides technical expertise in all specialties and methodologies of archaeology, historic preservation, and GIS, and also regional expertise to ensure clients are provided a focused approach. Specialties include experts in the fields of geoarchaeology, remote sensing, GPR, 3d modeling, XRF analysis, and other technical areas, solidifying ASM as a premier CRM firm. Additionally, many of our staff members have cross-disciplinary training. This includes staff that have obtained HAZWOPER certifications, UXO Safety Training, and are CPR and First Aid certified. 

Senior Archaeologists

Sherri Andrews, M.A., J.D., RPA

Amy Jordan Ph.D., RPA

Zoē Rawski, Ph.D., RPA

Summer Moore, Ph.D.

Whitney Osiensky, M.A., RPA

Holly Drake, M.A., RPA

Kent Manchen, M.A., RPA

Brieann DeOrnellas, M.A., RPA

Jana Boersema, M.A.

Tucker Austin, M.A.

Craig Cordell, M.A.

Jessica Hennessey, B.A.

Lauren Kepa’a, B.A.

Michael Shong

Architectural Historians & Historians

Sarah Stringer-Bowsher, M.A., RPH

Marilyn Novell, M.S.

Laura Kung, M.A.

Madeline Gonzalez, M.A.

Emily Steele, M.Sc.

GIS Specialists

Montana Long, M.A., RPA

Nick Doose, M.A.

Manuel Lopez

Erica Esquer

Administrative Staff

Jason Carr | Word Processing

Wendy Limsico | HR Manager

Brent Burmeister | Director, Marketing & Proposals


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ASM Corporate Headquaters | 2034 Corte Del Nogal | Carlsbad, California 92011.