John Philip Holland - Wikipedia
John Philip Holland: Irish inventor of the submarine
On This Day 24 February 1841 – Birth of John Philip Holland | Myles Dungan
John Philip Holland: Inventor of the Submarine : Sligo Engineering Fair
The Irishman Who Invented the Submarine - Irish America
The story of the Irishman who invented the submarine
John Philip Holland: Inventor of the Submarine : Sligo Engineering Fair
Heritage History: John Philip Holland
Did you know the inventor of the submarine tested an early prototype in Cork's North Mon?
John Philip Holland: The Father of the Modern Submarine
Irish American Heritage Month: John Philip Holland, Inventor of the Modern Submarine
Irish American Heritage Month: John Philip Holland, Inventor of the Modern Submarine
INVENTOR OF THE SUBMARINE: JOHN PHILIP HOLLAND • Connecticut Public Television
John Philip Holland, Inventor of the Submarine - Posts | Facebook
John Philip Holland (1840 – 1914) Inventor of the Submarine – Coast Monkey
A Man, a Plan, a Submarine: John Philip Holland – Coast Monkey
John Philip Holland: Irish inventor of the submarine
Museum | John Philip Holland
Happy Birthday John Philip Holland, "Father of the Modern Submarine" | The National WWII Museum Blog
RTÉ Archives | Technology | Inventor of the Submarine, John P. Holland
John Philip Holland: the Irish inventor who helped take the war underwater
Favourite DIB lives: John Philip Holland, submarine inventor | Royal Irish Academy
Timeline | John Philip Holland
Communicate Science: The Irish Submarine Pioneer: John Philip Holland
Communicate Science: John Philip Holland and Liscannor, Co. Clare
Central Bank of Ireland Issues Commemorative Coin in Honor of Submarine Inventor John Philip Holland
