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MEASUREMENT SOURCES · WHAT THEY DECIDED AND WHAT THEY REFUSED
What it is: two machine instruments close this part, because several of the build's verdicts are measurements and their sources are tools whose behavior is part of the evidence. The Census Bureau's geocoder was control-validated before it was believed — a known address (806 Tyler Street) resolved and checked first — and only then used for the containment verdicts the Religion and Health legs print (which churches, clinics, and grounds stand inside the town line and which stand outside it, West Troy's and the county's facilities sorted by measurement rather than by postal address). The county's parcel layer (the LandRecords service) succeeded as a counting instrument — the town envelope at 1,321 parcels, the PROP_CITY='Walkerton' selection at 1,354 — and failed as a pulling instrument: sustained paging died at the service (IncompleteRead, RemoteDisconnected), and the partial returns were used nowhere, in any leg, for anything. The layer's owner fields exist and were never requested. Beside these stand the state's survey instruments as sources: the SHAARD archaeological record frame the Land leg checks, and the Historical Bureau's marker file, the settler class for the town's markers (one of which W-11 settled from the marker database instead — see the awards addendum). An instrument's failure, printed whole, is a source describing itself; the build prints its instruments the same way it prints its books.
Principal sources: U.S. Census Bureau geocoder (control-validated, W-7); St.