Younger son of the late William MacMillan, joiner and Mrs macMillan, 75 Regent Street, Greenock. Aged 21
James MacMillan
- Born In: Greenock
- Died: 1st August, 1918
- Age: 21
- Rank: Private
- Service No: 1806/200376
- Regiment: 5th Argyll & Sutherland Highlanders
- Unit: 1st/5th Battalion
- Cemetery: Oulchy-le-château Churchyard Extension
- Memorials: Westburn Church War Memorial