Hi Donna Lou, There is one and only one death for an Archibald Munro on the Manitoba Vital Stats web page. AST NAME: MUNROE GIVEN NAMES: ARCHIBALD DATE OF DEATH: 01/16/1900 AGE: 37 UNITS OF AGE: YEARS SEX: M PLACE OF DEATH: WPG REGISTRATION NUMBER: 1900,003173 REGISTRATION DATE:
This would make him a bit young for your Archibald, but maybe it's worth tracking down to see if it fits.
Mind you I also found an Arch Munro in the 1906 census who was born Mar 29, 1864.Also a little young... He's living in Lisgar MB with a wife Isabel, and children:William, Hugh, Jamie, & Annie.