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| Name: | William Carroll Hilborn | Country: | Canada | Rank: | Captain | Service: | Royal Flying Corps Royal Air Force | Squadrons: | 28, 45, 66 | Victories: | 7 | Born: | 1899 | Place of Birth: | Alexandria, British Columbia | Died: | 26 August 1918 |  | Place of Death: | France |
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| | Hilborn joined the Royal Flying Corps in the summer of 1917 and served in Italy. Three days after he transferred to 45 Squadron, he was fatally injured in a flying accident on 16 August 1918. |
| Distinguished Flying Cross (DFC) |
| "An excellent patrol leader who on all occasions displays courage, endurance and skill. He has accounted for six enemy aircraft." DFC citation, London Gazette, 2 November 1918 | |
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