Earlier quoted context omitted.
The standard of construction has also changed since 1914. Not only do few people want to build a 900sqft freestanding home, if they did it today with that Sears kit, it would break nearly every building code in the book. A more equal comparison would be to a prefab or mobile home, which you can get for that inflation adjusted price.
I totally agree that the take away is construction costs are going up over time! This holds true even if you look at price/foot opposed to total cost. Like you said, part of this is differences in what you get, building codes, and amenities. That said, Craftsmen homes are wonderful and in some respects have better build quality than modern homes.
The 1910’s were a very different time. Comparing houses now to houses then is like comparing a horse to a Honda Accord. We’re not just talking luxury features here —- You can be pretty certain that a home built in 2022 has indoor plumbing, a refrigerator, and a furnace that doesn’t require shoveling fuel.