Source: Per post at 18th Battalion Facebook Group by David Archer.
Find-A-Grave
Family Search: Private William White was born on 9 December 1882, in Bradford, Yorkshire, England, United Kingdom as the son of White. He immigrated to Canada in 1913. He registered for military service in 1915. In 1915, at the age of 33, his occupation is listed as blacksmith in Toronto, York, Ontario, Canada. He died in 1943, in Ontario, Canada, at the age of 61, and was buried in Prospect Cemetery, Toronto, Ontario, Canada.
Private William White. Regimental no. 409250
This man enlisted with the 37th Battalion at Niagara Camp, Niagara-on-the-Lake on 10 June 1915. He was a blacksmith by trade and had no prior military experience.
Arriving in England on the SS Lapland, he landed on 11 December 1915 and was transferred to the 12th Reserve Battalion based at Shorncliffe on 15 March 1916. On 7 May 1916, he was transferred to the 18th Battalion and arrived “in the field” on 2 June 1916.
On 14 December 1916, he was attached to the 4th Canadian Trench Mortar Battery,
He served until he took “sick” and was sent to No. 5 Canadian Field Ambulance with a slight GSW to the head. He was wounded 14 January 1917 and was discharged to duty 16 January 1917.
He had a bout of myalgia starting 10 March 1917, and needed treatment at No. 7 Canadian General Hospital and returned ot the 18th Battalion on 5 June 1917.
He suffered from otitis media and a mastoid problem which was listed as acute, which required treatment at No. 7 Canadian General Hospital. This condition changed his classification to PB and he was boarded for defective hearing and transferred to the 4th Canadian Labour Battalion.
He arrived with this unit on 25 August 1917 and was granted 10 days leave, effective 28 October 1917.
The designation of this unit was changed to the 2nd Canadian Works Battalion on 14 June 1918 and he was transferred from this unit to No. 4 Canadian Works Company.
He was granted 14 days leave to the United Kingdom on 9 November 1918 and he returned from this leave on 12 December 1918.
He was “posted” and transferred to the Canadian General Depot at Witley Camp.
He was sent back to Canada on or about 17 February 1919, and was discharged for being medically unfit for service on 22 March 1919, at Toronto, Ontario.
He moved to Oshawa in the early 1920s and tragically his body was found in the Don River in mid-July 1943. He had been treated at the Christie Military Hospital the month prior and the identification of his body was made by the Reverend K.R. Berkeley.
From a news clipping about the discovery of his body, it appears he was born in 1875, not 1882, as recorded on his attestation papers.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 