Josiah Richard Perrett
Josiah Richard Perrett was an English engineer who was chief naval architect of Elswick Ordnance Company. His warship designs included the Brazilian s and Rio de Janeiro, and the Chilean s.
He was born at Plymouth. He attended the Royal School of Naval Architecture and joined the admiralty. In 1887, he left the admiralty to join Elswick Ordnance Company as first assistant to Sir Philip Watts, whom he succeeded in 1902 as chief architect.
He died at Babbacombe, Torquay.