Source: Operation Picture Me via The 18th Battalion Facebook Group. London Free Press Circa 1916.
Find-A-Grave: Note that service file has a date of death of 25 June 1920.
This site indicate he went by the name Orlin J. Simpson and correctly states his rank as sergeant. https://hsshssite.wordpress.com/veterans/world-war-i-veterans/
See his name under SIMPSON at this site and at this one: https://www.familysearch.org/tree/person/details/GHJM-4Z9 AND https://www.familysearch.org/tree/person/details/GKVD-7S9