The "Brandeis National Committee Las Vegas Chapter records" series mainly consists of planning documents, correspondence (including emails), event programs, newspaper clippings, reports, and newsletters created or collected by Miriam "Mimi" Katz in the course of her work for the chapter from 2006 to 2012. Materials document events and activities such as general meetings, the installation of officers, and Book and Author Luncheons.

The "Other community involvement records and personal papers" series mainly consists of materials created and collected by Miriam "Mimi" Katz from the 1940s to 2015 that document her involvement in the Las Vegas, Nevada community. This series contains a substantial amount of political campaign materials documenting Katz's volunteer work for state and federal candidates such as John Kerry, Dina Titus, Bill Clinton, and Al Gore. Katz was involved in the League of Women Voters and Temple Beth Sholom's Meet the Candidates nights, which is reflected in records and planning documents in this series. Records of other special events that Katz helped to plan for Temple Beth Sholom and its Active Adults program, as well as the Jewish Community Center of Southern Nevada, are also included in this series. The history of the local Jewish community is described in compositions by George Katz and Jerome D. Countess. Finally, this series includes some personal items documenting Katz's life, including photographs, certificates of recognition, and her obituary and memorial service program.