Temple Researchers Mapped Underground Railroad Travel Routes
A new geographic study details the specific transit patterns used by freedom seekers arriving in Philadelphia between 1853 and 1861.
Updated on Oct. 12, 2026 in Geography
Live Poll
Does understanding the historical origins of people in your community change how you view local history?
Temple University researchers have published a spatial dataset in the International Journal of Humanities and Arts Computing that maps the origins and travel routes of those who fled to Philadelphia via the Underground Railroad. This research analyzes over 1,000 individual accounts recorded by William Still to reconstruct 19th-century escape paths.
Why it matters
By integrating archival records into geographic information systems, this study illuminates the mechanics of escape networks and the impact of legal shifts, such as the 1857 Dred Scott v. Sandford ruling, on human migration. The findings help quantify regional flight trends across the mid-Atlantic during a critical period of American history.
Researchers digitized archives to plot 1,000 escape accounts within a geographic information system, identifying 122 escapes from Norfolk County and 84 from Dorchester County. The study demonstrates that escape volumes declined after the 1857 Dred Scott decision and increased kidnapper activity.
The players
Temple University
A Philadelphia-based research institution that hosts the interdisciplinary teams responsible for mapping historical transit.
William Still
A 19th-century abolitionist who maintained detailed written archives of the people he helped reach freedom in Philadelphia.
The details
The team converted William Still’s 1871 written records into digital data points to trace precise migration patterns. Analysis reveals that escapees from the southern Chesapeake Bay region utilized steamships or schooners to reach northern hubs before completing their journeys on foot. This GIS (Geographic Information System) — software that visualizes and analyzes spatial or geographic data — highlights the intersection of maritime transport and land-based travel.
Timeline
1853-1861: Period during which escapees traveled to Philadelphia.
1857: The Dred Scott v. Sandford Supreme Court decision prompted a decline in successful escapes.
1871: William Still published his detailed records of escaped enslaved people.
The Tech Race
The researchers track the decline in successful escapes following the 1857 Dred Scott v. Sandford Supreme Court decision. This data provides a quantitative benchmark for how federal judicial mandates historically altered the effectiveness of regional transit networks.
The new dataset is now available in the International Journal of Humanities and Arts Computing for researchers and historians to analyze. It offers a standardized spatial framework for understanding how local geography influenced 19th-century movement across the Philadelphia region.
The takeaway
This research provides a new spatial model for analyzing the efficacy of historical freedom routes through archival digitization. Interested readers should look for the follow-up study on the role of free Black workers in the regional shipping industry.
What happens next
Researchers intend to publish future datasets examining the specific involvement of free Black individuals within the maritime shipping industry.
Further reading
Discover more about the region's historical spatial data in our Geography section.
Source note: This article includes information reported by PhillyVoice.
Live Poll
Does understanding the historical origins of people in your community change how you view local history?
