Source: Per post at 18th Battalion Facebook Group by David Archer.
Family Search: Sergeant Joseph Pitman was born on 11 April 1890, in Stockingford, Warwickshire, England, United Kingdom as the son of John Pitman and Emma Baldock. He married Elenor Matthews on 27 April 1923, in York, Toronto, Ontario, Canada. He immigrated to Canada in 1913 and lived in Oshawa, Ontario, Ontario, Canada in 1915 and Toronto, York, Ontario, Canada in 1923. He registered for military service in 1915. In 1923, at the age of 33, his occupation is listed as sheet metal worker in Toronto, York, Ontario, Canada. He died on 22 February 1937, in Oshawa, Durham, Ontario, Canada, at the age of 46, and was buried in Union Cemetery, Oshawa, Durham, Ontario, Canada.
Sergeant Joseph Pitman. Regimental No. 409240.
This man enlisted in the 37th Battalion at Niagara Camp, Niagara-on-the-Lake, Ontario, on 10 June 1915. He was a teamster by trade and had no prior military experience.
Going overseas aboard the SS Lapland, he arrived on 12 December 1915, in England and was transferred to the 12 Canadian Reserve Battalion on 15 April 1916 at Shorncliffe.
A transfer to the 18th Battalion was effective on 8 May 1916, and he was “in the field” with the Battalion on 2 June 1916.
He was then attached for duty with the 4th Canadian Trench Mortar Battery, and while in their service he suffered from Trench Fever from 24 April 1917 to 27 June 917.
He was promoted to Sergeant on 1 July 1917 and just over a month later (12 August 1917) was granted a 14-day leave to England.
On 26 August 1918, he was wounded with a GSW to the left shoulder, and he was transferred to No. 32 Stationary Hospital on 27 August 1918, and then invalided to England aboard the A.T. Stad Antwerpen 3 days later.
His wounds were treated, and he embarked on the H.M.T. Aquitania on 18 January 1919 for Halifax, arriving on the 24th.
At some time during his service overseas, he was granted permission to marry.
He was discharged as medically unfit on 26 February 1919 at Toronto, Ontario.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 