Fire has destroyed the home on the Criddle/Vane historic site, just under 10 kilometres southeast of CFB Shilo.
Blue Hills RCMP said they received a call of fire at the vacant property around 10 p.m. on June 25, 2014.
Wawanesa emergency fire services also responded but were unable to save the house.
RCMP said there were no injuries and the damage estimate is unknown at this time.
RCMP call the fire "suspicious" and ask anyone with information to contact the Blue Hills detachment at 204-726-7519 or to call Manitoba Crimestoppers at 1-800-222-8477.