It is located on South Quad adjacent to "Main Circle", across from the law school building, and it hosts 234 undergraduates.

It was built in 1931 by the architectural firm Maginnis & Walsh in collegiate gothic style, and it is one of the oldest and largest of residences halls at the university.

[11] Both halls were designed in 1931 by architects Charles Donagh Maginnis and Timothy Walsh in Collegiate Gothic style.

[15][16] The architectural style of both Dillon and Alumni was in line with the previous gothic building on campus by Kervick and Fagan such as Morrissey, with local yellow brick with limestone trimmings, adorned with stone carvings on the facade and the interiors.

[2][14] Alumni, whose construction engaged more than 250 workers of the Ralph Sollitt and Sons and was rushed to competition before the fall semester, occupied the former spot of parking lots and was built in light face brick with limestone trimmings.

When the halls opened in late October 1931 and two hundred juniors (who had resided off campus for the beginning of the academic year) moved in, Alumni featured some of the latest technologies of the time, such as electric elevators, extension phones, buzzers, and slots for used razors.

Additionally, given the shortage of student housing on-campus, the plan to have rooms dedicating to returning alumni was scrapped.

[29] During World War II, Dillon and Alumni hosted officers for the V-12 Navy College Training Program.

The space was so cramped that Dave Condon '49, later a sportswriter for the Chicago Tribune, wrote in Scholastic that "when someone entered by the front door, it necessitated someone else leaving by the rear egress.

[35] In 1965, together with Farley and Dillon, it was the first dorm to try the "stay-hall" system, in which residents could stay all four years in the same hall rather than being divided by class as they were up until the 1960s.

The hall's unique architecture includes gargoyles up top and stone carvings of everything from Madonna and Child (north side chapel entrance), saints (Sts.

Thomas Aquinas and Bonaventure in the courtyard, work by John J Bednar [42]), an Irish Terrier (Clashmore Mike, one of the original mascots of the football team), to Knute Rockne (east side).

[45][46][47] The altars were installed in March 1932, and were made in and imported from Italy through the work of John F. O'Hara, then prefect of religion.

[18] The neo-gothic architecture made Dillon and Alumni the most ornate, prestigious, and pretentious of the residence halls on campus at the time.

[25] The first Wake involved a handmade wooden coffin, flowers raided from a cemetery trash heap, and a procession.

In subsequent years the Wake became a rowdy and alcohol-infused celebration surrounded by bizarre traditions, one of which involved Rector George Rozum, CSC, ‘61, ’80MSA, being carried into the hall's dance inside a coffin.