With the aid of the authorities of Rochefort he was enabled at the age of 15 to enter the Ecole Navale at Brest, in which he studied two years and earned a high reputation.[1] In 1851, he joined the Arctic expedition under the command of Captain William Kennedy in search of Sir John Franklin.Early in 1852, he was promoted to the rank of lieutenant, and in the same year accompanied the Franklin search expedition under Captain Edward Augustus Inglefield.While making a perilous journey with two comrades for the purpose of communicating with Sir Edward Belcher, he suddenly disappeared in an opening between the broken masses of ice in the Wellington Channel.[citation needed] The young explorer was mourned widely, and £2,000 was raised by a Royal Geographical Society committee – chaired by Sir Roderick Murchison – after his death, of which £500 went towards a granite memorial obelisk, designed by Philip Hardwick and unveiled in 1855, in his memory on the Thames riverside, in front of Greenwich Hospital.