Of German ancestry on his father's side, William Carrall Hilborn was the son of Stephen L. and Josephine (Huot de St. Laurent) Hilborn. He was raised on a 1600 acre ranch near Quesnel, British Columbia and joined the Royal Flying Corps, receiving a commission on 23 July 1917. He was posted to the Central Flying School on 15 August 1917 and was confirmed to the rank of temporary 2nd Lieutenant (on probation) on 3 October 1917. He completed flying school on 14 October 1917 and joined 66 Squadron on 10 November 1917, his unit being sent to Italy a few days later. There he scored 6 victories flying the Sopwith Camel. He was posted to 28 Squadron on 2 August 1918, scoring his final victory ten days later. Reassigned to 45 Squadron, where he replaced Lt. Alan Rice-Oxley on 13 August 1918, he was practicing night flying at Grossa 16 August 1918 and collided with a tree. He fractured his skull in the crash and died from his injuries ten days later.
Also listed as William Carroll Hilborn in the London Gazette.
Re Captain WILLIAM CARRALL HILBORN,
Pursuant to the Law of Property Amendment Act,
NOTICE is hereby given, that all creditors and other persons having any claims or demands against the estate of William Carrall Hilborn, a Captain in the Royal Air Force, late of Quesnel, British Columbia, deceased (who died on the 26th day of August, 1918, and to whose estate letters of administration were granted out of the Principal Registry of the Probate Division of His Majesty's High Court of Justice, on the 3rd day of February, 1919, to Richard Joseph Sutcliffe. of 6, Pump-court, Temple, E.G., Barrister-at-Law, the lawfu1 attorney of Stephen Lundy Hilborn, of Quesnel, British Columbia, aforesaid), are hereby required to send the particulars, in writing, of the claims or demamds to us, the undersigned, the Solicitors for the said administrator, on or before the 18th day of April, 1919, after which date the said administrator will proceed to distribute the assets of the said deceased amongst the persons entitled thereto, having regard only to the claims and demands of which he shall then have had notice, and he will not be liable for the assets of the said deceased, or any part thereof, so distributed, to any person or persons of whose claims or demands he shall not then have had notice.—Dated this 11th, day of March, 1919.
HUGHES, BARTLETT and THORNTON, 115,
High Holborn, W.C. 1, Solicitors for the said Administrator. 053