H. T. (Henry Thomas Johnson) Irwin

Henry T. Irwin, also listed as Henry Thomas Johnson Irwin, appears in archaeological records as a researcher and author connected with studies of early cultures in western North America. Surviving bibliographic records link him to work on subjects such as Paleoindian tool types, the Hell Gap site in Wyoming, lower Crab Creek surveys, and preservation methods for waterlogged archaeological remains.

He is also associated with Excavations at the LoDaisKa Site in the Denver, Colorado area, a substantial archaeological publication produced with Cynthia Irwin-Williams and other contributors. The range of titles connected with his name suggests a scholar interested in both fieldwork and the practical methods used to preserve and interpret ancient material.

Publicly available sources located here are quite limited, so many personal details about his life remain unclear. I could confirm his name in research repositories and book records, but not enough reliable biographical information to describe his upbringing, education, or career appointments with confidence.