Hardy acclimated English walnuts - L. C. Hall (Firm); Hall, L. C.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Avonia, Erie County, Pa, L. C. Hall, [1914], 1914)
https://www.biodiversitylibrary.org/bibliography/107375
Keywords: Catalogs|Erie County|Nurseries (Horticulture)|Nursery stock|Pennsylvania|Walnut|