Lance Corporal John "Jack" Lindsey Fisher was born in Wales in 1887, and immigrated to Canada in 1899, and by 1910 was living in Nanaimo, British Columbia.

Having previously served with the British Army Royal Artillery, Fisher returned to England and enlisted with the Royal Engineers on May 23, 1916. He was discharged following gas-related injuries in August 1917, and returned to Canada.

The letter in the Fisher Collection was published in the Ladysmith Chronicle, and was compiled along with those of other local WWI soldiers through the work of the Ladysmith & District Historical Society (links shown below).

The complete list of soldiers in the can be found in the Ladysmith and District Historical Society collection.

External links:
L/Cpl. Fisher (Serv/Reg# 649-F-11207) is listed in the Imperial Gratuities records at Library and Archives Canada, but information is limited to the record identification only.
The record of his Medal card with the Royal Engineers, (Reg# 158208), is held by the National Archives, Kew, U.K.; registration is required for access.
A collection of WWI soldiers' letters published in The Ladysmith Chronicle was undertaken by the Ladysmith & District Historical Society through their work with the Ladysmith Archives.