John Philip Holland

Irish-American marine engineer (1841–1914)

John Philip Holland (Irish: Seán Pilib Ó hUallacháin/Ó Maolchalann; February 24, 1841 – August 12, 1914) was an Irish-American marine engineer who developed the first submarine to be formally commissioned by the US Navy, USS Holland (SS-1) and the first Royal Navy submarine, Holland 1.

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