MacKay, John Ross
- Township: Embro & West Zorra
- Branch: 22nd Battalion
- Wars Served: Fenian Raids
- Country enlisted with: Canada
John Ross MacKay served with the 22nd Battalion at Sandwich, Ontario during the Fenian Raids. He married Harriet Martin. They lived at Brooksdale for 6 years then moved to Harrington West (963668), where he was a blacksmith. They are buried at Knox Presbyterian Cemetery in Harrington.