Alert: ONE Archives is now open for research by appointment. Appointments can be made at To make your return as safe as possible, MASKS ARE REQUIRED regardless of vaccination status, in line with university requirements. All visitors must also complete wellness assessments through  For more information, visit 

ONE National Gay & Lesbian Archives at the USC Libraries is the largest repository of Lesbian, Gay, Bisexual, Transgender, Queer (LGBTQ) materials in the world.


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ONE Inc. and Mattachine Society, Early LGBTQ Collections Now Online

The ONE Archives at the USC Libraries is excited to share the news that collections from two of the earliest gay and lesbian organizations in the United States, ONE Incorporated and Mattachine Society, are now accessible through the USC Digital Library, thanks to a generous grant from the National Endowment for the Humanities.


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