For this father and son, attending the Indy 500 isn't merely a getaway, it's a pilgrimage

When Joe Martin was 7 years old, his father woke him up in the middle of the night on a Saturday morning, hours before his favorite TV cartoons would air. "You wanna come watch the race cars with me?" asked his father, Richard Martin. Joe wiped the sleep from his eyes, realized what his father's...