"High and Impregnable"

"The next year, when he was in fifth grade, he decided he didn't want to go on with the training, and his parents supported him. His decision was met with ridicule from other students and primarily from a teacher who criticized him for keeping the class from being 100% in compliance with the religious curriculum.
"Vashti McCollum went to the superintendent of schools but was told that there was nothing to be done about the requirement."

The Los Angeles Times runs an obituary for Vashti Cromwell McCollum, the woman who challenged mandatory religious training classes in public schools in 1948.