The Old Boys’ Union of St. Peter's College was inaugurated on 15 October 1927 with the Rector, Rev. Fr. Nicholas Perera as the President. From 1927 to 1977, a period of 50 years, the Rector of the College was the ex-officio President of the OBU. In 1977 Rev. Fr. Francis Madiwela mooted the idea of electing a President from among members of the Old Boys’ union, with Rector becoming the patron of the union. Accordingly a 3 man Sub Committee was appointed to draft a new constitution incorporating the new proposal. This new constitution was adopted on 4th December 1977 and J.A.R. Felix was elected as the first President of the Old Boys’ Union.