Mill River Trail · Sign 1

Famous Stolen Submarine

How a stolen Irish-American submarine spent 33 years in a shed on the Mill River

The submarine was hidden for 33 years in a wood shed on the Mill River.
The submarine was hidden for 33 years in a wood shed on the Mill River.

In the late 19th century New Haven became an unlikely home for a revolutionary submarine prototype — a story that ties the city's industrial capacity to Irish-American political activism.

An Irish schoolteacher turned inventor

John Philip Holland was born in County Clare, Ireland, in 1841 and began his working life as a schoolteacher. He emigrated to Boston in 1872, moved to Paterson, New Jersey, and by 1875 was designing submarines. The US Navy had already dismissed his plans as impractical — "a fantastic scheme of a civilian landsman."

The Fenian Brotherhood, the American counterpart to the Irish Republican Brotherhood, saw the possibilities the Navy did not. After Holland successfully tested a 33-inch model at Coney Island, the Brotherhood's Skirmishing Fund put up $4,000 for a full-sized boat, then $20,000 for a second and much larger one.

The Fenian Ram

Launched in 1881 from the Delamater Iron Company in New York, Holland Boat No. II was christened the "Fenian Ram" by a reporter at the New York Sun. She was 31 feet long, six feet across, and weighed 19 tons. A three-man crew ran her: a pilot working two upright levers like joysticks, an engineer minding the valves and ballast, and a gunner operating an eleven-foot pneumatic gun that ran through the center of the forward air reservoir.

With the single exception of the periscope, which had not yet been invented, the Fenian Ram contained all the principal engineering ideas of the modern submarine. She dove in excess of 45 feet and successfully test-fired dummy projectiles supplied by the designer of the Monitor. Navigating blind, however, was perilous — in June 1882 she struck a Weehawken ferryboat and sank. Nobody was hurt, and she was raised within the week.

Stolen

In November 1883 a dispute over money erupted between Holland and the Brotherhood. Fearing that pending lawsuits would tie up Fenian property, a group of Fenians used a forged pass carrying Holland's own signature to enter the dock, and towed the Ram and a 16-foot model out of New York Harbor. The smaller boat sank in choppy water on the way. The Ram made it to New Haven.

There the thieves discovered they had no idea how to operate her. Holland refused to help. Attempts to run her in New Haven Harbor went so badly that the harbor master declared the boat a menace to navigation and forbade further trials.

Thirty-three years in a shed

Unable to use or sell the submarine, the Brotherhood had her hauled ashore and put in a lumber shed on the Mill River, said to have been at 99 Mill River Street — across the water from where you are standing. Her 15 horsepower Brayton oil engine was pulled out and set to work driving a forge in James Reynolds' brass foundry. The empty steel shell sat there gathering dust, the curiosity of the whole neighborhood, from 1883 until 1916.

Out of the shed

In 1916 the Fenian Ram was hauled onto a wagon and driven through the streets of New Haven — photographs survive of her passing down Olive Street — on her way to Madison Square Garden, where she was exhibited to raise money for victims of the Easter Rising. She went next to the New York State Marine School. In 1927 Edward Browne bought her and moved her to Paterson, Holland's adopted home, where she remains on display at the Paterson Museum.

Holland went on to win US Navy design competitions in 1888 and 1893. He died in 1914. Within forty days of his death a single submarine off the Dutch coast sank three British cruisers and killed more than 1,400 men. The New York Times noted that "although he was interested in submarines, Mr. Holland was opposed to war, and his idea of submarines was to incapacitate warships and not to destroy them and kill the men on them." In his 1907 sketches he had drawn a 40-passenger submarine with large circular viewing ports, meant "for amusement at seaside resorts."

The Fenian Ram being towed down Olive Street, New Haven, 1916.
The Fenian Ram being towed down Olive Street, New Haven, 1916.
Diagram showing internals of the submarine.
Diagram showing internals of the submarine.
The Fenian Ram on display at the Paterson Museum, circa 1960.
The Fenian Ram on display at the Paterson Museum, circa 1960.

Where this sign stands

Along the District, off Humphrey Street (visible from the Stack)

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Sources and further reading