Lord Rayleigh, in full John William Strutt, 3rd Baron Rayleigh of Terling Place, (born November 12, 1842, Langford Grove, Maldon, Essex, England—died June 30, 1919, Terling Place, Witham, Essex), English physical scientist who made fundamental discoveries in the fields of acoustics and optics...
Robert Baden-Powell, 1st Baron Baden-Powell, in full Robert Stephenson Smyth Baden-Powell, 1st Baron Baden-Powell of Gilwell, also called (1922–29) Sir Robert Baden-Powell, 1st Baronet, (born February 22, 1857, London, England—died January 8, 1941, Nyeri, Kenya), British army officer who became...