Difficult to be sure . Only man on BMD is Robert Roscoe Garnett but he was registered in St Pancras in Jan/Mar 1904. Also there is a Robert Redford Garnett registered Jul/Sep 1900 in Newcastle upon Tyne but died the next year.
1901 Jun 27 Born London
1921 Jan 11 . Joined with RIC no 77559 & ADRIC no 197. ex-Soldier & Farmer
1921 Apr 28 Resigned to return to Civilian Life
Robert Roscoe Garnett was born Dec 1903 in St Pancras
1911 Census at St Pancras

He did not serve with Canadian EF
Served in Royal Canadian Mounted Police
1930 Nov 8 Married in Vancouver to Valentine Soldatkin
1960 Jan 22 Died Vancouver