Epsilon Alpha Chapter · Founded 1918

Sigma Nu at the University of Arizona

A brotherhood built on Love, Honor, and Truth — carrying on more than a century of leadership, scholarship, and service in Tucson.

1918Chartered
100+Years at UArizona
ΕΑBrothers Everywhere
Sigma Nu Badge
Why Sigma Nu

Built on principle, proven over generations

From “Button” Salmon’s dying words that gave Arizona its rallying cry, to the alumni leading Tucson business today, Epsilon Alpha men have always led by example.

01

Legacy of Leaders

Home to John “Button” Salmon, who coined “Bear Down,” and generations of alumni who’ve shaped this university and city.

02

A Standard, Not a Slogan

Love, Honor, and Truth guide every decision our chapter makes — from academics to how we treat one another.

03

Brotherhood for Life

An active alumni network across law, real estate, construction, and business stays engaged with the chapter today.

Calling All Brothers

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Update your info, find classmates, and hear what’s new with the chapter.

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From the Chapter

Life at Epsilon Alpha

John Button Salmon

John “Button” Salmon

EA79 · The brother behind “Bear Down,” the University of Arizona’s lasting motto.

Candidate Induction Ceremony

Candidate Induction

New members are welcomed into the brotherhood each year in a ceremony steeped in chapter tradition.

Homecoming

Homecoming

Alumni and actives reunite every fall to cheer on the Wildcats and celebrate the chapter’s history.