I think this might be Robert McGregor. According to his attestation papers dated August 13, 1915 at Toronto, Robert McGregor was born on September 19, 1892 at Campbeltown, Argyleshire, Scotland. He listed his father Peter McGregor, Campbeltown, Argyleshire, Scotland as his next of kin. He was single, a grocery clerk and had no previous military experience. He as 23 years and 11 months of age and stood 5 feet 7 inches in height. He had brown eyes and hair and a ruddy complexion. He was a Presbyterian.
He was a member of the 28th Battalion, Canadian Infantry (Saskatchewan Regiment), when he was killed on October 12, 1918. According to the CEF burial register he died of wounds while with his platoon taking part in an advance north west of Iwuy. He was wounded in the right leg and right side by enemy shrapnel. He received immediate attention and was afterwards taken to No. 33 Casualty Clearing Station where he succumbed. He is buried in the Bucquoy Road British Cemetery in France. He is listed as the son of Peter and Isabella McGregor, of Mill St., Dalaruan, Campbeltown, Argyllshire.