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Wilmington in New Castle County, Delaware — The American Northeast (Mid-Atlantic)
 

Escape by Sea

Wilmington's Maritime Underground Railroad

 
 
Escape by Sea Marker image. Click for full size.
Photographed by Devry Becker Jones (CC0), October 25, 2025
1. Escape by Sea Marker
Inscription.
The Rocks by Moonlight - Freedom's Landing
The Rocks were used by abolitionist sea captains and freedom-seeking fugitive slaves as a landing site in Wilmington's Underground Railroad network. Located in today's Fort Christina Park, a unit of the First State National Historical Park. The Rocks were used not only as a landing site for the original Kalmar Nyckel in 1638 but also by ship captains of the maritime Underground Railroad in the 1840s and 1850s. Shooner captains carried freedom seekers from Southern ports in Maryland, Virginia, and North Carolina to the Rocks, where agents from the networks of Thomas Garrett in Wilmington and William Still in Philadelphia would be waiting. Records are sketchy, secrecy being vital to the operations, but at least 200 and perhaps as many as 400 fugitive slaves made it to freedom after escaping by sea and stepping ashore at The Rocks.1

The Maritime Underground Railroad
Maritime escapes were a vital part of the history of the Underground Railroad. Before the Civil War, 30% or more of all those who escaped enslavement traveled by sea to reach freedom.2 Many fugitives who came by boat had worked as watermen or as dockhands in seaports. Those with seafaring or watercraft experience
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sometimes absconded with boats and piloted their own way to freedom, especially in the Chesapeake and Delaware Bays. Others found passage on ships with sea captains who were either anti-slavery minded or opportunists willing to risk breaking the law for profit.

Collaborators on the Maritime Underground Railroad
Captain Fountain, Captain Robert Lee, and Captain William Baylis were active agents ("pilots") who carried fugitives to freedom onboard their schooners and made several stops at The Rocks.3 Free black agents who worked with Thomas Garrett and William Still, including Harry Craige and Severn Johnson, often met the fugitives at The Rocks and helped them on the final stages of their journey to freedom. Sometimes, Captain Fountain met fugitives at The Rocks and transported them up the Delaware River to League Island in Philadelphia, where members of Still's Vigilance Committee would meet them with carriages.

Watercraft of the Underground Railroad - "Many Rivers & Few Bridges"
Watercraft of some kind — from small skiffs and canoes to large sailboats and steamers — were used in nearly every successful journey to freedom. Watercraft proved essential due to the relative absence of bridges prior to the Civil War and the many rivers that most freedom seekers needed to cross before reaching
Escape by Sea Marker image. Click for full size.
Photographed by Devry Becker Jones (CC0), October 25, 2025
2. Escape by Sea Marker
sanctuary in free states (and sometimes Canada).

the first bridge to span the Ohio River, for instance, was the Roebling Suspension Bridge in Cincinnati, which did not open until Dec. 1, 1866. And the few bridges that did exist, like the South Market Street Bridge across the Christina River in Wilmington, were known chokepoints watched by slavecatchers.

Letter from Thomas Garrett to William Still
Wilmington, 3d mo., 23d, 1856

Dear Friend, William Still

Captain Fountain has arrived all safe, with the human cargo thee was inquiring for, a few days since. I had men waiting till 12 o'clock till the Captain arrived at his berth, ready to receive them; last night they then learned, that he had landed them at the rocks, near old Swedes church, in the care of our efficient Pilot, who is in the employ of my friend John Hillis, and he has them now in charge. As soon as my breakfast is over, I will see Hillis and determine what is best to be done in their case. My own opinion is, we had best send them to Hook and there put them in the cars to-night and send a pilot to take them to thy house. As Marcus Hook is in Pennsylvania, the agent of the cars runs no risk of the fine of five hundred dollars our State imposes for assisting one of God's poor out of the State by steamboat or cars.

As ever thy friend,
Additional signage inside the Kalmar Nyckel Foundation Museum image. Click for full size.
Photographed by Devry Becker Jones (CC0), October 25, 2025
3. Additional signage inside the Kalmar Nyckel Foundation Museum
Five Ways to Freedom
Navigating Delaware's Underground Railroad Network

Five Heroes
Frederick Douglass • Harriet Tubman • Thomas Garrett • Captain Alfred Fountain • William Still

Five Factors
Why Delaware
♦ Location - Borders state and close to Pennsylvania
♦ Transportation network
♦ Free Black community
♦ Quaker activists
♦ Anti-slavery societies, mid-1830s

Five Modes
Foot • Horseback • Horse & Carriage • Train • Ship

The Maritime Underground Railroad
♦ 30% escaped by sea
♦ 50+% used watercraft as main transport
♦ 95% used watercraft at some point

Five Main Routes
Wilmington • Eastern Line
— Thos. Garrett

[Footnotes:]
1. See William Still, The Underground Railroad (1872), and the Letters of Thomas Garrett and William Still.

2. Maritime escapes figure prominently in published slave accounts. Of 103 extant published accounts by fugitive slaves over 70% describe using oceangoing vessels as a means of fleeing slavery. In addition, William Still documents 152 escapes by sea from a recorded total of 350 — or about 43%.

3. Captain Fountain is referred to as "Alfred" in a letter from Thomas Garrett to William Still dated July 10, 1860. Researchers Priscilla Thompson and Debra Martin have found a "James Watson Fountain" residing in Wilmington during the period and evidence suggesting this was Captain Fountain. "Alfred Fountain" may have been a mistake on the part of Thomas Garrett, but most secondary sources follow Garrett's letter and still refer to Captain Fountain as "Alfred."

[Captions:]
Captain Fountain offloads freedom seekers at The Rocks, with Harry Craige, a free black agent who worked with "stationmaster" Thomas Garrett, awaiting with horses and a wagon.

Drawing by Hal Taylor

The Rocks on the Christina River in Wilmington, DE
Plan of the City of Wilmington (1847), inset from Map of New Castle
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County, Delaware,
published by Smith & Wistar, 1849.

Featured in William Still's 1872 The Underground Railroad, this illustration depicts four fugitive slaves, William Thomas Cope, John Boice Grey, Henry Boice, and Isaac White, as they row a skill across the Delaware Bay from Lewes, Delaware, to the free state of New Jersey. The four then found help from an oyster boat captain, who piloted them to Philadelphia where they received further assistance from William Still and other Pennsylvania Anti-Slavery Society agents.

 
Erected by Kalmar Nyckel Foundation.
 
Topics. This historical marker is listed in these topic lists: Abolition & Underground RRWaterways & Vessels. A significant historical date for this entry is July 10, 1860.
 
Location. 39° 44.224′ N, 75° 32.202′ W. Marker is in Wilmington, Delaware, in New Castle County. It can be reached from East 7th Street east of Swedes Landing Road, on the right when traveling east. The marker can be accessed from the second floor of the Kalmar Nyckel Foundation's museum. An admission is charged. Touch for map. Marker is at or near this postal address: 1124 E 7th St, Wilmington DE 19801, United States of America. Touch for directions.

Regionally, this marker is in Greater Philadelphia. It is also in the American Mid-Atlantic and on the Delmarva Peninsula. Globally, it is in the North Atlantic Region, North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Netherland and also one of the original Thirteen Colonies.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Wilmington's Civil War Ironclads (a few steps from this marker); USS Monitor – America's First National Marine Sanctuary (a few steps from this marker); Lifeboat 39 (within shouting distance of this marker); a different marker also named Lifeboat 39 (within shouting distance of this marker); The Monument (about 500 feet away, measured in a direct line); a different marker also named The Monument (about 500 feet away); Fort Christina (about 500 feet away); Fort Christina Monument (about 500 feet away). Touch for a list and map of all markers in Wilmington.
 
Additional commentary.
1. Language usage in Thomas Garrett's letter to William Still
Thomas Garrett was a Quaker (or Friend), and his writing reflected Quaker customs for language usage at the time. Examples:
• March is stylized as "3rd mo." At the time, most Quakers avoided using names for months or days of the week. Instead of January, February, March..., Quakers referred to these as 1st month, 2nd month, 3rd month.... Additionally, days of the week were referred to numerically as well; Sunday is historically referred to as First day. Note: March 23rd fell on a Sunday.
• The second person pronouns are the historical informal forms. Quakers historically used the pronouns of thee, thou, thy, and thine instead of you, your, and yours. Traditionally, you is the formal second person pronoun set and thee is the informal. While the use of you became the standard for formal and informal speech in English, Quakers maintained the "thee" form to demonstrate the inherent equality of all humanity.

Both of these language customs have fallen to the wayside in most contemporary Quaker practices in the United States by the 1970s. Some Quaker Meetings still refer to Sunday as "First Day" during Meeting for Worship and Sunday School as "First Day School," but these are vestiges. Grave stones (when they were used) in Quaker Burial Grounds, especially in the Northeastern United States, often reflect the changes in customs over the years.
    — Submitted October 26, 2025, by Devry Becker Jones of Washington, District of Columbia.
 
 
Credits. This page was last revised on October 26, 2025. It was originally submitted on October 26, 2025, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 69 times since then and 27 times this year. Photos:   1, 2, 3. submitted on October 26, 2025, by Devry Becker Jones of Washington, District of Columbia.
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Jul. 4, 2026