sentences:  His mother joined the Campbellites when he was eight years old, and a year later, after Mormon missionaries came through their area, his older brother William Wallace Casper joined the Church of the Latter Day Saints.Casper's parents joined two years later and in 1837 they moved the family to Missouri, where they purchased a home.Mobs drove the Latter Day Saints from Missouri, and Casper's parents had to leave their home behind.