On 25 August 1943, Ronald Douglas Johnson, the son of Douglas Francis and Alice Jean Johnson was killed in an air-raid whilst a prisoner-of-war in Foggia, Italy. He was a Private serving with the Technical Services Corps, Union Defence Force. He was 22 years old at the time of his death. Ronald's Road and Ronald's Kloof in the main Kloof Gorge are named after him, both area's having been part of his childhood "playground".
The stream that runs through Memorial Park and falls into the main gorge at Ronald's Kloof is now commonly known as Ronald's Kloof Stream. Many hikers walking the Yellow-trail in Krantzkloof Nature Reserve, cross this stream at the weir in the vicinity of the Crowned Eagle's nest which is located below Ronald's Kloof.