A.B. Miller High School is named after Azariel Blanchard Miller, who is credited as the founder of the city of Fontana. In 1905, he brought 200 head of horse, mules, plows, scrapers and tents into the area and began transforming 17,000 acres of sand, sage brush and rock into a great citrus fruit, poultry and livestock farm.[4]
As of June 2020, Principal Dustin Saxton announced that the school would be removing all instances of the Rebel mascot and mentions of Rebel Nation.[2]
In March 2010, A. B. Miller High School was placed on a list of the lowest performing high schools in the state.[5] A transformation model was put in place in the school, which called for the replacement of the principal and rewarding teachers based on student performance. The principal was not replaced at that time, however, due to being on the job less than two years.[6][7][8]