Detailed Instructions: In this task, you will be given a passage to read. A fill in the blank question will be given to you.  Your answer should fit the blank appropriately.
Problem: Charles Eaton was born on 21 December 1895 in Lambeth , London , the son of William Walpole Eaton , a butcher , and his wife Grace . Schooled in Wandsworth , Charles worked in Battersea Town Council from the age of fourteen , before joining the London Regiment upon the outbreak of World War I in August 1914 . Attached to a bicycle company in the 24th Battalion of the 47th Division , he arrived at the Western Front in March 1915 . He took part in trench bombing missions and attacks on enemy lines of communication , seeing action in the Battles of Aubers Ridge , Festubert , Loos , and the Somme . On 14 May 1915 , Eaton transferred to the Royal Flying Corps ( RFC ) , undergoing initial pilot training at Oxford . While he was landing his Maurice Farman Shorthorn at the end of his first solo flight , another student collided with him and was killed , but Eaton emerged uninjured . He was commissioned in August and was awarded his wings in October . Ranked lieutenant , he served with No. 110 Squadron , which operated Martinsyde G.100 Elephant  fighters out of Sedgeford , defending London against Zeppelin airships . Transferred to the newly formed Royal Air Force ( RAF ) in April 1918 , he was posted the following month to France flying Airco DH.9 single @-@ engined bombers with No. 206 Squadron . On 29 June , he was shot down behind enemy lines and captured in the vicinity of Nieppe . Incarcerated in Holzminden prisoner @-@ of @-@ war camp , Germany , Eaton escaped but was recaptured and court @-@ martialled , after which he was kept in solitary confinement . He later effected another escape and succeeded in rejoining his squadron in the final days of the war . fill in the blank  :  Charles Eaton was born on 21 December 1895 in Lambeth , London , the son of __________________ Walpole Eaton , a butcher , and his wife Grace . 
Solution:
 William 