A Fictional River Town: Growth, Bypass, and Two Kinds of Evidence
Harlan's Crossing is a fictional river town used in a state-assessment practice set. Its recorded population is 1,180 in 1890, 2,940 in 1900, 3,120 in 1910, and 2,060 in 1920. In 1898 a railroad opened a depot two miles from the town center, and the 1900 census lists 41 new businesses along Depot Road. In 1915 a bypass highway opened four miles east and drew freight traffic away from the depot; the depot closed in 1921.
A student finds two sources. A 1902 booster pamphlet published by the town's chamber of commerce calls Harlan's Crossing "the fastest-growing town on the river." A 1923 letter from a former resident states that "the town began to die the day the highway bypassed us." The student must decide how far each source can be trusted and whether the highway caused the population decline.
1. Test the pamphlet's 1902 claim against the population figures. What part of the claim is supported, and what part cannot be settled by this data?
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Supported: explosive growth did occur between 1890 and 1900 - from 1,180 to 2,940, an increase of 1,760 people, roughly a 149% rise. Growth continued modestly to 1910 (3,120, up about 6%). So "growing" is consistent with the numbers in the decade the pamphlet was written.
Not settled: "fastest-growing on the river" is a comparison with other towns, and the data give only Harlan's Crossing. No other town's figures appear, so the superlative cannot be evaluated. Even the growth rate itself would need other towns' populations to become a ranking.
Source caution: a chamber of commerce pamphlet is promotional and was published in 1902, at the peak of the boom, so it has both an interest in exaggerating and a timing advantage. The student should treat "growing rapidly" as supportable and "fastest on the river" as unverified.
2. Evaluate the 1923 letter as evidence. What makes it useful, and what limits should the student place on it?
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Useful: it offers a specific, checkable causal claim tied to a datable event (the 1915 bypass), and it comes from someone who lived through the period. It can be tested against the census and the depot closing date.
Limits:
- It is one person's memory, written eight years after the bypass and over twenty years after the town's peak.
- It is retrospective and emotionally loaded - "began to die" is figurative, not a measurement.
- The writer may be confusing correlation with cause, or may not know why other residents left.
- It tells us about one resident's perception, not about the town's actual economic conditions.
A strong answer uses the letter as a hypothesis to test - did out-migration cluster after 1915 and among people tied to freight and depot work? - rather than as proof.
3. The population fell by 1,060 between 1910 and 1920, and the bypass opened in 1915. Does this timing prove the highway caused the decline? Explain, including at least one alternative explanation and one timing problem in the letter's claim.
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No - it does not prove causation. The overlap in timing is suggestive but insufficient, because a decline that spans 1910–1920 can have causes that predate or do not involve the highway.
Alternative explanations to check: a regional agricultural downturn, a drought or flood on the river, the 1918 influenza epidemic, a major employer closing, or steady out-migration toward a larger city that began before 1915. Any of these could produce the same population curve.
Timing problem in the letter: the depot closed in 1921, after the 1920 census already recorded the decline. So the depot closure cannot explain the 1910–1920 drop, even though the letter's narrative of "the town dying" invites the reader to bundle the closure with the bypass.
What would help: business-license counts by year, tax records, school enrollment, and out-migration records showing which residents left and when. A cause is supported by a mechanism and by timing that fits, not by coincidence alone.