I don’t think they’re Sackett Board as they’re much thicker and heavier than 1/4" and they’re not layered in any way. They are preformed plaster and they have sort of tongue-and-groove edges like modern ceiling tiles so that two edges are supported by neighboring panels so as they’re installed they only have to be nailed off on two edges. Installation must have been a two-man job, at least on the ceiling. The houses in my neighborhood were built as temporary housing for shipyard workers and were certainly never meant to last 80+ years, and yet here they all still are - only two of the original 320 are gone and they were torn down intentionally to make room for a baseball diamond. I watch these house inspector videos on Youtube and just laugh my ass off at what pieces of utter shit modern houses are.

The hat wasn’t a slouch hat unless that term is broader than I think. It was green waxed canvas with a small front brim and little ear flaps with ties. It even had a tag with the contract number and year on it, which confirmed when the house was built. I was going to wear it but it had a bunch of little moth- or other-critter- holes in it and I stupidly threw it away.