‘Duncan’ originated in Florida and is a ‘Edward’ x  Pico No. 18 cross with a vigorous growth habit (Sturrock, 1969). The fruit is monoembryonic, the peel is yellow to golden-yellow without a blush, 510-623 g . The pulp is amber yellow, fiberless with a mild sweet flavor. ‘Duncan’ is a midseason to late season cultivar.