A board member of the Cesar Chavez Foundation since 1997, Maldonado-Stamos is one of 10 children born to a family of migrant farm workers in Fresno County, Calif. She attended public schools in the county, studied for two years at California State University, Humbolt and a year at California State University, Bakersfield before earning a B.A. degree in liberal arts and Latin American history from California State University, San Jose in 1977.
She began working for Cesar Chavez Foundation in 1972 as administrative aide to the organization's executive director. Later, she worked with the Boy Scouts of America, serving as district executive, professional scout, fundraiser as well as recruiting children into the group. After more than 20 years with the organization, she became director of finance for the San Francisco Bay Area Council of the Boys Scouts of America.
Between 1990 and 1992, Maldonado-Stamos worked as a statewide coordinator with the University of California President's Office in Oakland for a new program called the Puente Project whose goal was to keep Latinos in high school and help get them to college.
She returned to work as a special events fundraising consultant with the Boys Scouts for three additional years before retiring and moving to Fallbrook in San Diego County. Maldonado-Stamos returned to college and earned a teaching credential at California State University, San Marcos in 2002 and currently works part time teaching English language development to 4th through 6th graders.
Married to Nick W. Stamos, they have three children and five grandchildren.