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Record W97635393

Harriet Tubman, the Underground Railroad, and the Bridges at Niagara Falls

2012· article· en· W97635393 on OpenAlexaboutno aff
William H. Siener, Thomas A. Chambers

Bibliographic record

VenueAfro-Americans in New York life and history · 2012
Typearticle
Languageen
FieldSocial Sciences
TopicCanadian Identity and History
Canadian institutionsnot available
Fundersnot available
KeywordsUnderground RailroadBridge (graph theory)NarrativeLegendArchaeologyForensic engineeringHistoryLawEngineeringPolitical scienceArt
DOInot available

Abstract

fetched live from OpenAlex

This study began in the winter of 2008, when a city official in Falls, New York asked if we could verify whether anything remained of the bridge that Harriet Tubman used to escort refugees from slavery in the United States to freedom in Canada. There is no doubt that in the course of rescuing enslaved African Americans before the Civil War and moving them safely to Canada, Harriet Tubman crossed the River by the The issue is complicated by the fact that six historic suspension bridges have spanned the River at three different points at one time or another. Such bridges crossed the river just north of the Falls, just south of the River Whirlpool, and below the Escarpment in Lewiston, New York. Which ones were used by Tubman? While asserting that the Whirlpool site was used by Tubman, one noted authority suggests that Tubman may also have crossed over on the suspension bridge constructed in 1851 between Lewiston and Queenston, Ontario. (3) Some local tradition denies that was an Underground Railroad crossing at all. Moreover, even those who think that the city was an Underground Railroad crossing are confused about which remnants of several different bridges are associated with Tubman. Our purpose is to replace urban legend with rigorous evidence as to which bridge Tubman used, and what remains of the bridge today. This task first requires finding reliable narratives that connect Underground Railroad activities to Falls, then connecting those activities to specific sites within the present city. We have found such narratives and through the use of maps, photographs, and even a bit of high school trigonometry we can demonstrate that was indeed an important Underground Railroad crossing; that Harriet Tubman was one of a number of Underground Railroad operatives who escorted refugees across the international border there; and that the remains of the bridge that they used are still intact. In fact, at the quest for freedom intersected with one of the most remarkable achievements in nineteenth century bridge-building. The Underground Railroad and Harriet Tubman at Falls, New York We know from a number of narratives published by the Philadelphia abolitionist and Underground Railroad organizer, William Still, that was both an Underground Railroad crossing point into Canada, and a place in which refugees, and those who assisted them, regularly stayed. Using those accounts, we need to establish where in the present city of Falls, New York Underground Railroad activity took place, what was the nature of the activity, and what part Harriet Tubman herself took in it. By the 1850s two towns existed at the site now encompassed by the City of Falls, New York. One, Falls, was above the cataracts near the southern end of the old portage to Lewiston below the Escarpment. By the 1830s it was a thriving milling and light industrial site, as well as a tourist destination, connected to Lockport, Buffalo, and towns below the escarpment by railroad and horse-drawn coaches. It was formally incorporated as a village in 1848. The second, originally known as Bellevue, was two miles north and owed its genesis in the mid-1840s to plans to build an international railroad bridge there at what was the narrowest point along the River. It was formally incorporated as City in 1854. (4) While the incorporated name of the village at the American end of Roebling's bridge was City, (5) by the mid-1850s it was popularly known as Suspension Bridge. Railroad timetables listed stops at both Suspension Bridge and Niagara Falls (6) When Franklin Pierce appointed Jacob Henning deputy postmaster in 1856, it was to a post in Suspension Bridge, in the county of Niagara, State of New York. (7) In 1856, a letter from Harrisburg, Pennsylvania Underground Railroad agent, Joseph C. …

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesScience and technology studies
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.582
Threshold uncertainty score0.998

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.005
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.034
GPT teacher head0.236
Teacher spread0.203 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designNot applicable
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2012
Admission routes1
Has abstractyes

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