Walter Rangeley Maitland Lamb (1882-1961) was a noted classical scholar and Secretary of the Royal Academy of Arts (1913-51). He translated some works of Plato which were published by Harvard University Press, London in 1925.
The Atlantis sections of this translation can be read online(a).
(a) https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0180%3Atext%3DTim. (link broken Sept 2020)