[1] The first club with the name "Alumni" played association football, having been found in 1898 by students of Buenos Aires English High School (BAEHS) along with director Alexander Watson Hutton.

[2] Alumni was reorganised in 1908, "in order to encourage people to practise all kinds of sports, specially football".

This was the last try to develop itself as a sports club rather than just as a football team, as Lomas, Belgrano and Quilmes had successfully done in the past, but the efforts were not enough.

and Guillermo Cubelli, supported by the school's alumni and fathers of the students, decided to establish a club focused on rugby union exclusively.

Since then, Alumni has played at the highest level of Argentine rugby and its rivalry with Belgrano Athletic Club is one of the fiercest local derbies in Buenos Aires.