<p>When a baseball player finds out only the day before that he is about to be promoted to the major leagues, family members and friends are often left scrambling to make travel arrangements to see their loved one’s debut first-hand.</p><p>Braden Montgomery’s family was tested more than most.</p><p>Monday afternoon, Richard Willock, Braden’s stepfather, left Jackson, Mississippi, with his youngest son, 17-year-old Mason, on a six-hour drive to Georgia, where Mason was scheduled to attend a baseball camp. It rained for much of the ride.</p><p>At around 7, with Mason about an hour into his first session, Richard’s phone rang. “He said, ‘Good news,’ ’’ Richard said, “and that’s when the fire drill started.’’</p><p>Braden’s mom, Gretchen, was scheduled to work the overnight shift as an emergency physician at St.