Son of Daniel and Elizabeth Main, 2 Oakfield Terrace, Ratho Street, Greenock.
John Gray Main
- Died: 21st April, 1918
- Age: 20
- Rank: Private
- Service No: 45952
- Regiment: Lancashire Fusiliers
- Unit: 19th Battalion
- Cemetery: Tyne Cot Memorial, Tyne Cot Cemetery, Belgium