Olds' bulbs : fall bulb book, 1939 - L.L. Olds Seed Co.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Madison, Wis, L.L. Olds Seed Co, 1939, 1939)
https://www.biodiversitylibrary.org/bibliography/172237
Keywords: Bulbs (Plants)|Catalogs|Madison|Perennials|Seed industry and trade|Wisconsin|