author
d. 1978
An archaeologist and anthropologist whose work helped document important prehistoric sites in the American West, he is best remembered for careful field research published with Cynthia Irwin-Williams. His surviving work offers a close look at mid-20th-century archaeology in Colorado and the Pacific Northwest.

by H. T. (Henry Thomas Johnson) Irwin, Cynthia Irwin-Williams
He worked as an American archaeologist and anthropologist, and records indexed through Project Gutenberg and Wikidata identify him as H. T. (Henry Thomas Johnson) Irwin, with a death year of 1978. Available catalog and archive records connect him with archaeological research in Colorado and Washington state.
Irwin is most closely associated with Excavations at the LoDaisKa Site in the Denver, Colorado area, a detailed study of an important Colorado rockshelter site prepared with Cynthia Irwin-Williams. Other archive listings also link him to research on early human remains and archaeological sites in the Pacific Northwest, showing a career focused on fieldwork, excavation, and the interpretation of ancient lifeways.
Although biographical details about his personal life are scarce in the sources readily available online, his published work reflects the careful, collaborative style of archaeology in the mid-1900s. For listeners interested in the history of archaeology, his writing preserves the methods and discoveries of a formative period in the study of North American prehistory.