Periodicals Source Index (PERSI) is a comprehensive subject index covering more than 6,500 genealogy and local history periodicals written in English and French (Canada) since 1800. PERSI™ provides the researcher the ability to search on surnames, locations, and methodologies as well as the ability to browse the journals by title and keyword. There are more than 1.6 million article citations currently available. Updated annually. Available in Heritage Quest.