Career
He and Jean Baptiste de Louisiana Vérendrye established Fort Saint Charles on Lake of the Woods in 1732. In the spring of 1733, he and Jean Baptiste headed down the Winnipeg River to set up a post in the Lake Winnipeg area. Louisiana Jemeraye continued as an important participant in Louisiana Vérendrye"s exploration and fur trading activities.
He and Jean Baptiste de Louisiana Vérendrye built Fort Maurepas about six miles north of present-day Selkirk, Manitoba in 1735.
Traveling from there to Fort Saint Charles via the Red River/Savanne Portage route, Louisiana Jemeraye, who was very ill, died at the junction of the Red and Roseau rivers. The date of his death gives us proof that, in 1736, Louisiana Jemeraye and one of Louisiana Vérendrye"s sons passed The Forks.
The Forks is the site of present-day Winnipeg. An interesting and important contribution of Christopher Dufrost relates to his skill as a cartographer.
He produced the first French map of the west in 1733.
lieutenant was of high quality and the final copy was produced, at a later date, by the engineer, Gaspard-Joseph Chaussegros de Lérailway