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- The labor set-piece: the glass cutters, 1910–1919 Wars & Military Service
- The Labor System From Inside: What the Record Names, and What It Does Not Industrial Revolution
- The laboratory discovery, closed: Kemper searched entire — the negative is now exhaustive at its named instrument Health & Care
- The LaFeber register: the historian's prizes, by birth-and-raising tie Awards & Honors
- The lake before the marsh: how the plain was laid The Land
- The Land Section
- The land office and the first sales: the office whole, the townsite roster a named gap The Land
- The land today: a farmed township around a railroad townsite The Land
- The Landmark Lounge That Cannot Stand Here: A Boundary Negative Bars & Nightclubs
- The largest gifts whole and first: two deeds in kind, their amounts unpublished Major Donations
- The later orders — and two negative tests, printed as tests Lodges & Fraternal Orders
- The later seats: Church of God meetings (1888), the Wesleyan church, the Pentecostal church, and Grace Reformed Churches & Religion
- The later shelf: Sheneman, Hoganson, Foster & Rotter — and the town's own History page Sources
- The later unwindings: 1985–2026 and 2008–09 Wars & Military Service
- The later wars: an exact zero, with its searches Wars & Military Service
- The law of keeping: the Town Code, read for a preservation chapter Historic Preservation
- The law over their heads: the Black Laws, Article XIII, and the register that does not survive Underground Railroad
- The ledger of losses, counted in one article — kept separate from rescues Historic Preservation
- The leg's two rules, stated at its head Wealth
- The legend books: Simon Pokagon's bibliography Famous Stories & the Record
- The library today: 43 hours a week, and the town's meeting room Arts
- License Branch Section
- License Branch: Not Found and Still Open License Branch
- Licensed production abroad: the patent limb, tested Exports
- The licensing beats: the driver's license at the Roosevelt Road counter License Branch
- The Lincoln men, named: the standard, and what does not yet meet it Wars & Military Service
- Lincoln Township and the county seats Government
- Lincoln Township, 1866: the town gets its civil frame The Story of Walkerton
- Lincoln Township: erection and first officers, 1866–1880 Government
- The lines out: the "Hon." Wolfe, the congressman who represents but does not live here, and two men of one name Public Servants
- The Live Stage After the Palaces, November 2026 Arts
- The loans whole, at the county grain the Treasury kept: the Third Loan counted entire Wars & Military Service
- The local shelf, one title further: Marilyn Sherland's The Island Authors & Books
- The locally produced phenomenon test: the school's own media Film & TV Producers
- The lodge ring: Masons, Odd Fellows, Knights of Pythias, Lions Fairs
- Lodges & Fraternal Orders Section
- The Long Narrowing: A Removals Ledger Industrial Revolution
- Long studios: two sightings do not make a succession Photographers
- The long tail: Chapman's Lincoln Township roll, 1880 Notable People
- The long tail: the town's names Notable People
- The long-lived houses: the harness line's half-century, Williams's open course, Celebrity's own account Businesses
- Lore's souvenir object: no "Dillinger car" of Walkerton's Crime & Public Safety
- Losses that taught: two losses stand; the movement does not Historic Preservation
- Lottery & Crypto Section
- Loyalty's edge, the wartime clock, the Armistice — and influenza, the other war Wars & Military Service