friend and attorney of William Marsh Rice, and first chair of the Rice Board of Governors. Will Rice College, named for William M. Rice, Jr., the nephew of the university's founder, William Marsh Rice. Hanszen College, named for Harry Clay Hanszen, benefactor to the university and chairman of the Rice Board of Governors from 1946 to 1950. Wiess College, named for Harry Carothers Wiess (1887–1948), one of the founders and one-time president of Humble Oil, now ExxonMobil. Jones College, named for Mary Gibbs Jones, wife of prominent Houston philanthropist Jesse Holman Jones. Brown College, named for Margarett Root Brown by her in-laws, George R. Brown. Lovett College, named after the university's first president, Edgar Odell Lovett. Sid Richardson College, named for the Sid Richardson Foundation, which was established by Texas oilman, cattleman, and philanthropist Sid W. Richardson. Martel College, named for Marian and Speros P. Martel, was built in 2002. McMurtry College, named for Rice alumni Burt and Deedee McMurtry, Silicon Valley venture capitalists. Duncan College, named for Charles Duncan, Jr., Secretary of Energy. Each residential college has its own cafeteria (serveries) and each residential college has study groups and its own social practices. Although each college is composed of a full cross-section of students at Rice, they have over time developed their own traditions and "personalities". When students matriculate they are randomly assigned to one of the eleven colleges, although "legacy" exceptions are made for students whose siblings or parents have attended Rice. Students generally remain members of the college that they are assigned to for the duration of their undergraduate careers, even if they move off-campus at any point. Students are guaranteed on-campus housing for freshman year and two of the next three years; each college has its own system for determining allocation of the remaining spaces, collectively known as "Room Jacking". Students develop strong loyalties to their college and maintain friendly rivalry with other colleges, especially during events such as Beer Bike and O-Week. Colleges keep their rivalries alive by performing "jacks," or pranks, on each other, especially during O-Week and Willy Week. During Matriculation, Commencement, and other formal academic ceremonies, the colleges process in the order in which they were established. Baker 13 Baker 13 is a tradition in which students run around campus wearing nothing but shoes and shaving cream at 10 p.m. on the 13th and the 31st of every month, as well as