Claim: Frederick Walter Simms, born on December 24, 1803 in London, was a British civil engineer.
Evidence: Frederick Walter Simms (24 December 1803 – 27 February 1865) was a British civil engineer. Born in London, Simms suffered from ill-health in his younger years (as his obituary put it, he was "of delicate constitution", and some difficulty was encountered in finding him suitable employment until via the influence of his brother he was despatched to Ireland as an assistant to the Ordnance Survey.