Elva Rivera, Principal

It is with great pride that Mrs. Elva Rivera serves as the John F. Kennedy principal, a position she has held since the opening of the school in 2009.  As a principal, she encompasses the mission and vision that stakeholders have made to themselves, each other, and to students and families. She has made it her commitment to do whatever it takes to ensure that JFK “prepares all students for academic and life-long success.”

Her continued focus has been leading school-wide initiatives designed to strengthen and enhance student performance in all content areas while nurturing a safe and successful environment for all students.

Ms. Rivera feels that a collaborative school environment is the key to creating successful teachers and students. She believes partnerships with parents and community members are essential to enriching the experience at JFK.

Ms. Rivera has thirty-one years of experience in education.  She holds a Bachelor in Science and a Master’s Degree in Reading.  She is certified as a classroom teacher, in bilingual education, a reading specialist and as a principal.

She served as a teacher for thirteen years at Progreso and Weslaco I.S.D. She then transitioned to Mercedes I.S.D. as a reading coordinator for three years and an assistant principal at Travis Elementary for five years.

Mrs. Rivera leads by example and exudes Tiger Pride!
Melissa Chacon
Assistant Principal/Campus Behavior Coordinator
Melissa R. Chacón is currently serving as Assistant Principal at John F. Kennedy Elementary. In her 21 years of dedicated service to Mercedes ISD, Mrs. Chacón was a Bilingual Teacher for five years, a school guidance counselor for six years, where she was named Teacher of the Year in the 2004-2005 school year for W. B. Travis Elementary. Mrs. Chacón prides herself in building rapport with all educational stakeholders and believes that through these academic relationships, success is achievable. Melissa R. Chacón received her Bachelor of Interdisciplinary Studies with a minor in Bilingual Education and her Master of Education in Counseling and Guidance from The University of Texas Pan American. Seeking to better serve the community and schools of Mercedes, Mrs. Chacón obtained her principal certification from the Region One Educational Service Center in 2009 and has proudly served John F. Kennedy as assistant principal since. Throughout her career, Mrs. Chacón has contributed to establishing a culture of student learning, leadership, collaboration, and community contribution. 
Patricia Condet, Academic Coach


Patricia Condet works with teachers at John F. Kennedy Elementary to prepare all students for academic success. Patricia believes that all students can succeed and it is the school’s responsibility to make it happen. During her tenure as an academic coach, she has helped her team become proficient in the areas of direct instruction, data driven instructional decision making, and incorporating all language domains in classroom instruction. Patricia is certified in the areas of elementary education, reading, and bilingual education. Patricia holds a Master of Education in Curriculum and Instruction from The University of Texas at Arlington and a Bachelor of Interdisciplinary Studies from The University of Texas Pan American.
Sylvia Garza, Math & Science Interventionist
Sylvia Alejandro-Garza has worked with MISD for the past twenty-five years as an elementary bilingual teacher, ACE Coordinator, and currently as the Math and Science Interventionist.  Mrs. Garza earned her Bachelor of Interdisciplinary Studies with a minor in Bilingual Education as well as her Master’s in Bilingual/GT Education from the University of Texas Pan American.  Her professional responsibilities include providing support in the areas of Math and Science as well as serving as the Campus Testing Coordinator.  She has had the pleasure of working with countless teachers by providing instructional support through mentoring, resources, collaborations, and data driven decision making.  Mrs. Garza’s goal is to make a difference in the lives of all JFK students by ensuring that they learn effective strategies that will allow them to master grade level standards and curriculum.