William J. Murray
William J. Murray III, evangelist and author, is the son of prominent atheist Madalyn Murray O'Hair, and came to prominence when he was used by his mother in the Maryland case Murray et al. v. Curlett et al, later incorporated into the U.S. Supreme Court decision Abington School District v. Schempp, successfully removing prayer and other religious displays from schools.
Murray became a Christian in 1980 at which time his mother bitterly disowned him for all time. He went on to found the Religious Freedom Coalition in 1982 which is a strong proponent of family values.