George Barker Jeffery FRS[1] (9 May 1891 – 27 April 1957) was a leading mathematical physicist in the early twentieth century.
He is probably best known to the scientifically literate public as the translator of papers by Albert Einstein, Hendrik Lorentz, and other fathers of relativity theory.
In 1923, with W. Perrett, he published what has become the definitive English translation of the seminal papers on relativity by Einstein, Lorenz, Weyl and Minkowski.
In 1926, together with O. Baldwin, he published a paper presenting the gravitational plane waves, which are widely regarded as one of the most important of all exact solutions of the Einstein field equation in general relativity.
He visited the Gambia, Sierra Leone, Ghana (then called The Gold Coast) and Nigeria from December 1949 to March 1950.