Tips and pointers for beginners with peonies - Henry S. Cooper (Firm); Cooper, Henry S.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kenosha, Wis, Henry S. Cooper, [c1922], 1922)
https://www.biodiversitylibrary.org/bibliography/125577
Keywords: Bulbs (Plants)|Catalogs|Kenosha|Nursery stock|Peonies|Plants; Ornamental|Roots|Wisconsin|