(click to enlarge)
The Knuckleduster Cowtown Creator by Forrest Harris (1999)
I'll give you three guesses which fandom I had started dabbling in when I saw this in a post by an online acquaintance and had to track down (luckily second-hand) for myself :)
Obviously, it was written for RPG enthusiasts to help them create their Old West towns: less for reading, more for reference. All manner of good stuff like the typical businesses in town, floor plans for buildings, goods available in all kinds of stores and suggested prices, typical character types and the jobs they might do, medical skills (and what doctors couldn't do), livery prices, stagecoaches and robberies, morse code and restaurant meals, fancy house euphemisms and gambling games, and of course lists of names (people, horse, stores, towns and so on)... not what an expert on the period might want but for someone who wanted to get their game right, it's wonderful.
And for a humble little fanfic writer who has a complete fascination for domestic detail and wants to get her stories to at least sound right... it's been a treasure :) to the point where I scanned what I found the most valuable bits of the town/character stuff and keep the scans on my hard drive so I can take the information with me wherever I might be scribbling...