It was named after Henry John Temple, 3rd Viscount Palmerston who was a British Prime Minister.

The 3rd Viscount of Palmerston, Henry John Temple, was the Prime Minister of the United Kingdom from 1855 to 1858.

Evelyn Ashley has written:

'The Life of Henry John Temple, Viscount Palmerston: 1846-1865'

Viscount Palmerston was created in 1723.

Henry John Temple Palmerston has written:

'Lord Palmerston on the treaty of Washington' -- subject(s): Great Britain. 1842 Aug. 9., Great Britain, Treaty of Washington