Two Proctors are elected each year&colon; a Senior and a Junior Proctor. Generally, proctors were hired to patrol exams. Each residence hall has several faculty members and senior student proctors. He supervised residence hall proctors and student organizations. They were supervised by the University Proctors, and had disciplinary powers over students. The incident led to a reform of the powers of the Cambridge University proctors. Nick blows up the dam with himself, the Proctors, and Daniel on it. Tris Plover, a 29-year-old slave, rebels against the Proctors. On 4 May 1603, he was one of the proctors for the year. The remaining Proctors in use soldiered-on after Service use in private hands until the 1960s. Eight generations of Proctors resided on the Downing farm, until 1851.