[2][4] After returning from Paris, Gaboury settled in Winnipeg,[6] where he established an architectural partnership with Denis Lussier and Frank Sigurdson.
[4] Gaboury was known for his regional prairie designs that incorporated elements of the physical, emotional, and spiritual, and characterized himself as a "plains architect".
[7] Notable projects by Gaboury include the new Saint Boniface Cathedral (1972), the Royal Canadian Mint building (1978), and the Esplanade Riel (2003), all in Winnipeg.
The tipi-style Precious Blood Church – completed in 1968 in St. Boniface, Manitoba – featured eleven interior wood beams which form a smokeholelike skylight thirty metres above the altar.
[10] Gaboury designed the wall that surrounds sculptor Marcien Lemay's depiction of Canadian Métis leader Louis Riel as a naked and tortured figure.
Gaboury envisioned the two surrounding concrete columns as a "cage" that epitomized Riel's spirit, instead of being a mere reproduction of the leader.
[14] Grandfather of Anna Binta Diallo, multidisciplinary visual artist[15] Gaboury died on October 14, 2022, at the age of 92.