Named in honor of J. Reuben Clark, a former United States Ambassador to Mexico and Under Secretary of State, the society's membership is primarily composed of members of the Church of Jesus Christ of Latter-day Saints (LDS Church), although there is no requirement that those in the society be church members.

Alumni and students of the J. Reuben Clark Law School at Brigham Young University (BYU) are de facto members of the society.

Senators, including erstwhile President Pro Tempore Orrin Hatch, nine U.S.

The society holds an annual conference for students and attorneys, typically in the middle of February.

The 2006 conference was held in Washington, D.C., and featured the Attorney General of the United States as well as a panel of distinguished U.S. Supreme Court advocates.