Juan Jph. Gregorio DeAnda and Maria de Jesus Peres

My 3rd Great grandfather Juan Joseph Gregorio DeAnda married Maria de Jesús Peres June 3, 1782 in Encarnación de Díaz, Jalisco. On their marriage document (Image 49) it states that Maria de Jesús Peres parents are Jose Casillas and Gertrudis Romo de Vivar. The marriage of Jose Casillas and Gertrudis Romo is dated April 26 1779 in Jalostotitlan Jalisco. (Image 524) I must have the wrong set of parents because the dates don’t make sense. I have not been able to find another set of parents with the same names nor have I found Maria de Jesus Peres baptismal record. I would greatly appreciate any info that would help me resolve this dilemma.

Aurora