Daffodils, 1942 - Edwin C. Powell (Firm); Hermitage Gardens (Rockville, Md.); Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rockville, Maryland, Edwin C. Powell, [1942], 1942)
https://www.biodiversitylibrary.org/bibliography/178019
Keywords: Catalogs|Daffodils|Maryland|Nursery stock|Roots|Silver Spring|Varieties|