She died on 7 November 1966 and was buried alongside Jules at at Sacred Heart Catholic Church Cemetery in Ville Platte, Louisiana. The date of her birth on the stone doesn't quite agree with the date on her birth record (which is not particularly unusual).
Donald J. Hébert, Southwest Louisiana Records, 1750-1900, compact disk #101 ("SWLR CD"), (Rayne, LA: Hébert Publications, 2001; reprints by Claitor's Publications); PITRE:
PITRE, Armide (Louis & Nidia TATE) b. 20 Sept. 1888 (VP Ch.: v. 4, p. 114)
↑ "Louisiana Parish Marriages, 1837-1957," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QKJH-1Y3H : 8 November 2020), Mr Jules Foret and Miss Armide Pitre, 15 Dec 1904; citing St. Landry, Louisiana, United States, various parish courthouses, Louisiana; FHL microfilm 870,700. Image of record included.
↑ Find a Grave, database and images: accessed 16 February 2021, memorial page for Jules Rene Foret (12 Nov 1884–15 Jun 1925), Find A Grave: Memorial #197580054, citing Sacred Heart Catholic Church Cemetery, Ville Platte, Evangeline Parish, Louisiana, USA; Maintained by GIMV (contributor 49782891). Photo of grave included.