Original: George Herbert Leigh Mallory ( 18 June 1886 & ndash ; 8\/9 June 1924 ) was an English mountaineer who took part in the first three British expeditions to Mount Everest in the early 1920s .
Simplified: Mallory was born in Mobberly , Cheshire , the son of Herbert Leigh Mallory ( 1846 - 1943 ) , a clergyman who changed his name to Leigh-Mallory in 1914 .