During the years of Hawaiʻi's AIDS crisis, Steven DeMaggio created several panels for the memorial NAMES Project AIDS Quilt honoring friends and acquaintances who had passed due to the disease. DeMaggio's collection contains clippings, medical literature, other documents, and photographs from this era of his life. Materials relate to AIDS, especially in Hawaiʻi; the Names Project AIDS Quilt in general; and several individual Quilt panels that DeMaggio created in particular.

Reverend Curtis Metzger served on the Board of Directors of two non-profit organizations advocating for same-sex marriage in Hawai‘i during the mid-to-late 1990s, Marriage Project Hawai‘i (earlier named the Hawai‘i Equal Rights Marriage Project) and Protect Our Constitution. His papers consist of records, ephemera, and artifacts that document these organizations and his involvement with them.

Includes the Coalition for Equality and Diversity, of which MPH (and its predecessor, the Hawaiʻi Equal Rights Marriage Project) was a member.