In the late 1990s the claim of Aubrey Kruger gained more prominence. Kruger's claim is that he and Merrifield had considered the shape of concrete blocks to be used to protect East London's extensive breakwaters for the City's non-natural harbour, following a major storm in 1963.
In the late 1990s, Aubrey Kruger's proposal regarding the use of concrete blocks to protect East London's breakwaters from storms gained prominence. This idea was based on a concept by Kruger and Merrifield following a major storm in 1963.