Manuel Cantu, legitimate son of Francisco Cantu (no mother named), married Victorian Rodriguez, legitimate daughter of Apolonio Rodriguez and Petra Quintanilla in Gen Teran on
24 Aug 1922.
https://familysearch.org/pal:/MM9.1.1/N63R-BJW I looked in the Informaciones Matrimonials and Civil Marriages in that time and came up empty. Manuel may be the son (baptized 3 Jan 1881) of Francisco Cantu and Anastacia Erraza but it's only a long shot.
Best of luck.