> But it is the third site, which seems to have transitioned from a logging camp to a thriving village, that fascinates [the archaeology professor] the most.

Must be a real privilege for your grandfather to share that bit of vivid history with you. My grandfather would have been a young adult during WW2, and the small island that both he and I grew up on has a deep history with the Japanese which had a direct impact on its indigenous population; he supposedly spoke fluent Japanese as a consequence, along with Korean (by birth), the indigenous language (married a local), and eventually English (after American occupation). Unfortunately, he was unable to speak coherently by the time I was in my late teens and old enough to be interested, so the only history lessons I've gotten of the time were second hand, passed down from the stories he told my father.