I have Marguerite Feilteau, daughter of Thomas Feilteau and Marguerite Jacques, born 26 Sept. 1814 at Ste. Marie de Beauce. She married Francois Turmel(le) 12 Nov. 1833 at Ste. Marie de Beauce. They eventually moved to Bay County Michigan where her name was spelled Fecto.
The name I found most often for this family in the Ste. Marie de Beauce records was Feilteau, with the occasional Fecteau spelling.