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Second pass against Businesses · Osceola
The miss mechanisms, drawn from the first leg's own contents so the discipline is checkable: (1) Firms carried as colour — a business named inside another article's story (a store inside a biography, a mill inside a land deed) without a heading of its own; the first leg carries several, the Bancroft mills among them. (2) Trades without headings — work the gazetteers filed under a man's name and occupation rather than a firm's: the banked censuses list Joseph C. Dills, carpenter, and Solomon Holben, carpenter, as persons, not firms. (3) The empty band — the owners roster's 1930–89 band prints empty by design (SEC11 AF-O6-5); any firm of those decades is missed structurally, not by oversight. (4) The unswept classified runs — the sources article of the first leg admits the directories' classified sections were not yet run decade by decade; that admission is item 9's whole subject. (5) The naming collision — a modern firm carrying an old name (the Martin family's creamery, 2017, against Crystal Springs Creamery) reads as a succession and hides the gap between them. Each article below names which mechanism it is testing before it tests anything.
Sources: Businesses (banked) — gazetteer censuses, owners roster, sources article, and closing gaps roll; SEC11 AF-O6-5.