As of November 2015, quarter horse pedigrees can be found on the Pedigree Online - All Breed Database website. This website is a free resource for looking up equine pedigrees. Pedigrees of popular quarter horse individuals can also be found on the Foundation Horses, Pedigree Pursuits and Equineline websites.
For a more complete pedigree resource, researchers should consider joining the American Quarter Horse Association. AQHA membership includes access to AQHA Member Services including all registered Quarter Horse records. In addition to pedigrees, details about Quarter Horse get and produce reports, show and race records, and other research tools can be found.