Citation
Unknown. “Pear Orchard-Keiffer. Parry's Nursery, Parry, N.J. 1893. This is the first Keiffer pear orchard. It was planted by Wm. Parry from buds obtained by the original tree, 14 miles north of Philadelphia. Pollination experiments by Waite in this orchard in 1893..” Special Collections, USDA National Agricultural Library. Accessed November 4, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/271.