John Henslow (Surveyor of the Navy)

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This article is about the Surveyor of the Navy — for his grandson botanist and geologist see John Stevens Henslow.

Sir John Henslow (9 October 1730 – 22 September 1815) was Surveyor to the Navy (Royal Navy) a post he held jointly or solely from 1784 to 1806.


He was 7th child of John Henslow a master carpenter in the dockyard at Woolwich[1]

Cape Henslow on Guadalcanal is named after him

Among the vessels he designed were the Acute class gun-brigs and four frigates to the same design, the first of which was Phoebe. The Laurel class post ship sixth rates were a series of six ships built to his 1805 design. Perhaps his smallest vessels were the two Placentia-class sloops of 42 tons burthen, which he designed for coastal patrol duties off Newfoundland.

His son John Prentis Henslow, solicitor, was father of John Stevens Henslow. He was also the grandfather of Francis Hartwell Henslowe, who was the son of Edward Prentis Henslow.

Notes and references[edit]

  1. ^ Darwin’s Mentor: John Stevens Henslow, 1796-1861 S. M. Walters and E. A. Stow CUP