Rhonda was born in Orange, Texas, but grew up in several different areas because her father was an airline pilot. She graduated valedictorian from San Marin High School in Novato, California, in 1975 and went on to study Civil Engineering at Southern Methodist University in Dallas as a McDermott scholar. While there, she met her future husband, Ray, and after graduation, they married. Rhonda worked for AT&T as an engineer for 2-½ years and then began raising a family. Mrs. Wilcox earned her teaching certificate in 2000 and began teaching mathematics. Rhonda teaches a variety of Middle and High School mathematics courses.