 From San Francisco Bay Area Gay and Lesbian Historical Society (1985), to the Gay and Lesbian Historical Society of Northern California in 1990, thus clarifying the geographical reach of its primary collections; followed by the Gay, Lesbian, Bisexual, Transgender Historical Society in 1999, in response to concerns raised by bisexual and transgender community members and their allies, to more clearly state the inclusive mission the society had pursued since it was founded.In everyday usage, the institution generally employs a short form of its name