Who is 'Moody,' and why is everything in Austin named after them?

There's the Moody College of Communication at UT, the Moody Rooftop at the Contemporary Austin, Moody Hall at St. Edwards University, Moody Bank, the Moody Pavilions at Laguna Gloria, ACL Live at the Moody Theater, the Moody Amphitheater at Waterloo Park, and Moody Center. It can be a little confusing.