Working towards a Long Island that’s working for everyone,
immigrant and native alike.

Facebook Twitter RSS
The Swedish Immigrant Who Saved the U.S. Navy

March 2, 2012   View Discussion

The Swedish Immigrant Who Saved the U.S. Navy

Patrick Young, Esq.

by Patrick Young, Esq. - Blogger

Scroll to the bottom for a complete list of The Immigrants’ Civil War articles.

On March 8, 1862, a massive Confederate ship, clad in iron armor, steamed into view of the Union blockade squadron near Newport News, Virginia. By the end of the day, the ironclad had sunk two of the largest wooden ships in the Union Navy and forced two other to run aground. The new battleship, christened the “Virginia” by the Confederates, was built on the base of a captured Union ship called the Merrimac. On March 8, the Merrimac appeared to be the most powerful naval vessel in the Western Hemisphere.

Confederate hopes for the Merrimac were so strong, that the Confederate Secretary of the Navy wrote to the ship’s captain asking him if he could “sail to New York and attack and burn the city” after destroying the navy along the Virginia coast. The Navy Secretary fantasized that the Merrimac could “shell and burn…the Brooklyn navy yard” and destroy the “lower part of the city.” He predicted “bankers would withdraw capital from the city,” which would be “a blow from which the enemy could never recover.”1

On March 9, the Merrimac steamed out to finish off the Union squadron. A small vessel, it appeared to be a barge or raft, moved to block the Confederate ship twice its size. The Union ship, the Monitor, had arrived off Newport News from Brooklyn the day before, just as the battle was being fought. On that day, it would engage in one of the most important battles in naval history.

A 3D model of the Monitor. Click on it to activate 3D function.

Not all of America’s immigrants were day laborers, small farmers, or political refugees. In 1862, as now, some were scientific or technological geniuses who brought the latest innovations from around the world to our country. John Ericsson was the immigrant high-tech wizard behind the ship that would save the United States Navy.

Ericsson was born in Sweden, where he learned engineering from his father. While he was in his twenties, he immigrated to England. There he built the fastest train in the world, capable of speeds over 65 miles per hour all the back in 1829. He soon turned his talent to designing ships.2

Steam-powered ships were a relatively new invention. Most ships were still equipped with sails because steam power was expensive and unreliable. Steam ships were driven by paddle wheels, which were an incredibly inefficient means of propulsion. A paddle wheeler had to carry enormous quantities of fuel, limiting space for cargo and passengers. Ericsson designed the screw propeller as a replacement. This was one of the ancestors of the modern propellers used today on everything from speedboats to supertankers.3

Ericsson introduced the propeller to the United States when he immigrated to New York in 1839. He saw it as particularly useful in naval ships. A paddlewheel was extremely vulnerable in battle. Shoot away the huge paddlewheel, an easy target, and the ship was a sitting duck. Put the means of propulsion under water as a propeller and you made it almost impossible to hit.4

While Ericsson originally came to the United States to make a fortune, after the failure of the Revolutions of 1848, he decided to become a US citizen. Still, he had doubts about his new country’s ethical core. His authorized biography says that Ericsson “was hostile to slavery from the beginning and was accustomed to say that he could conceive of nothing meaner than the desire of one man to live off the toil of another.”5

When the Civil War broke out, the U.S. Navy was still made of wood and heavily reliant on sails. It was only when the navy found out that the industrially weak Confederates were building iron-armored ships that the Union followed suit. Industrialist Cornelius Bushnell had a design for an ironclad ship that he brought to Ericsson for review. Bushnell later recalled that after looking over the plans, Ericsson took out an “old dusty box” in which he had a small model of a ship design. The Ericsson ship was the opposite of older designs.6

John Ericsson’s plans for the Monitor.

Ships had steadily become larger to become more powerful. Power was equated with the number of cannons a ship could carry. More cannons required more men to man them. Crews numbered in the hundreds. Ericsson’s ship was to have only two cannons, which allowed it to be crewed by just a few dozen sailors. Small, with its propeller and most of its quarters underwater, it would be a tough target for an enemy to hit. The two cannons were to be mounted in a steam-powered turret that could turn 360 degrees, a revolutionary innovation. “It was less than ten minutes before I fully awoke to the fact that salvation was in store for our government and country,” Bushnell said.7

Ericsson built the Monitor in 100 days.

On March 9, 1862, the Monitor repeatedly fought off the Merrimac, even though the Confederate ship was twice as large with more than five times as much firepower. The huge cannon shot of the Merrimac simply deflected off the round iron turret of the Monitor.

The Confederate Merrimac returned to its dock that night and would never take another victim.

After the war, Bushnell wrote to Gideon Welles, Lincoln’s Navy Secretary, “I am confident that no native-born child of this country will ever forget the proud son of Sweden.”8

The Monitor after the battle; dents to the turret (left) are from the Merrimac.

The battle between the Monitor and the Merrimac immediately made its way into popular culture.

Just a few months after the naval battle, the American songwriter Stephen Foster incorporated a tribute to Ericsson into his song “That’s What’s the Matter”:

The Merrimac, with heavy sway,
Had made our Fleet an easy prey__
The Monitor got in the way,
And that’s what’s the matter!
So health to Captain Ericsson,
I cannot tell all he has done,
I’d never stop when once begun,
And that’s what’s the matter!

You can visit New York’s tribute to John Ericsson in Battery Park.


1. Monitor by James Tertius de Kay, published by Walker (1997) p. 154; The First Fight of Iron-Clads by John Taylor Wood in Battles and Leaders of the Civil War Vol 1 pp 692-711; .

2. Monitor by James Tertius de Kay, published by Walker (1997) p. 11.

3. Monitor by James Tertius de Kay, published by Walker (1997) p. 17.

4. Monitor by James Tertius de Kay, published by Walker (1997) p. 17-20.

5. The Life of John Ericsson by William Conant Church, Scribners (1911) p. 181.

6. The Original United States Warship “Monitor” published by the Bushnell National Memorial Association (1899) p. 24; The Building of “The Monitor”  by John Ericsson in Battles and Leaders of the Civil War Vol 1 pp. 730-745.

7. The Original United States Warship “Monitor” published by the Bushnell National Memorial Association (1899) p. 24.

8. The Original United States Warship “Monitor” published by the Bushnell National Memorial Association (1899) p. 15.

The Immigrants’ Civil War is a series that will examine the role of immigrants in our bloodiest war. Articles will appear monthly between 2011 and 2015, the 150th Anniversary of the Civil War. Here are the articles we have published so far:

1. Immigrant America on the Eve of the Civil War - Take a swing around the United States and see where immigrants were coming from and where they were living in 1861.

2. 1848: The Year that Created Immigrant America - Revolutions in Europe, famine and oppression in Ireland, and the end of the Mexican War made 1848 a key year in American immigration history.

3. Carl Schurz: From German Radical to American Abolitionist- A teenaged revolutionary of 1848, Carl Schurz brought his passion for equality with him to America.

4. Immigrant Leader Carl Schurz Tells Lincoln to Stand Firm Against Slavery.

5. ...And the War Came to Immigrant America -The impact of the firing on Fort Sumter on America’s immigrants

6. The Rabbi Who Seceded From the South

7. The Fighting 69th-Irish New York Declares War

8. The Germans Save St. Louis for the Union

9. New York’s Irish Rush to Save Washington

10. Immigrant Day Laborers Help Build the First Fort to Protect Washington-The Fighting 69th use their construction skills.

11. Carl Schurz Meets With Lincoln To Arm the Germans

12. Immigrants Rush to Join the Union Army-Why?- The reasons immigrants gave for enlisting early in the war.

13. Why the Germans Fought for the Union

14. Why Did the Irish Fight When They Were So Despised?

15. The “Sons of Garibaldi” Join the Union Army

16. The Irish Tigers From Louisiana

17. Immigrant Regiments on Opposite Banks of Bull Run -The Fighting 69th and the Louisiana Tigers

18. The St. Louis Germans Set Out To Free Missouri

19. Wilson’s Creek Drowns Immigrant Dream of Free Missouri

20. English-Only in 1861: No Germans Need Apply

21. After Bull Run: Mutineers, Scapegoats, and the Dead

22. St. Louis Germans Revived by Missouri Emancipation Proclamation

23. Jews Fight the Ban on Rabbis as Chaplains

24. Lincoln Dashes German Immigrants Hopes for Emancipation

25. When Hatred of Immigrants Stopped the Washington Monument from Being Built

26. Inside the Mind of a Know Nothing

27. The Evolution of the Know Nothings

28. The Know Nothings Launch a Civil War Against Immigrant America

29. The Know Nothings: From Triumph to Collapse

30. The Lasting Impact of the Know Nothings on Immigrant America.

31. Lincoln, the Know Nothings, and Immigrant America

32. Irish Green and Black America: Race on the Edge of Civil War

33. The Democratic Party and the Racial Consciousness of Irish Immigrants Before the Civil War

34. The Confederates Move Against Latino New Mexico

35. Nuevomexicanos Rally As Confederates Move Towards Santa Fe—But For Which Side?

36. The Confederate Army in New Mexico Strikes at Valverde

37. The Swedish Immigrant Who Saved the U.S. Navy


Painting of the Return of the 69th from Bull Run Unearthed

Blog Posts

Why I’m Writing The Immigrants’ Civil War

New Immigrants Try to Come to Terms with America’s Civil War

Important Citizenship Site to be Preserved-Fortress Monroe

Should Lincoln Have Lost His Citizenship?

The First Casualties of the War Were Irish-Was that a Coincidence?

Civil War Anniversaries-History, Marketing, and Human Rights

Memorial Day’s Origins at the End of the Civil War

Germans Re-enact the Civil War-But Why Are They Dressed in Gray?

Leading Historians Discuss 1863 New York City Draft Riots

The Upstate New York Town that Joined the Confederacy

Book Reviews

The Harp and the Eagle: Irish American Volunteers and the Union Army, 1861 to 1865 by Susannah Ural Bruce

Jews and the Civil War: A Reader Edited by Jonathan Sarna and Adam Mendelsohn

Civil War Citizens edited by Susannah Ural Bruce

Germans in the Civil War: The Letters They Wrote Home edited by Walter Kamphoefner and Wolfgang Helbich

A World on Fire: Britain’s Crucial Role in the American Civil War By Amanda Foreman

Immigration Vacation -Civil War Sites

Fort Schuyler- Picnic where the Irish Brigade trained




Stay Informed
Monthly Archives
News Sections