Harry B. Lagerstedt Papers, 1937-1981

The correspondence in the Harry B. Lagerstedt Papers reflects his interaction with other horticulturalists and researchers in England, France, Canada, and the Netherlands regarding filbert varieties. The collection's bulletins were primarily published by the OSU Extension Service. Constituting about half of the collection, the index cards were stored in a box marked "Harry's Walnut Notes" and are part of a filing card system referencing published studies on walnut research.

Featuring topics such as filbert breeding, walnut pollination, and hazelnut variety development, Lagerstedt's research writings include published proceedings and field studies with research data about filbert varieties from two particular orchards in Oregon.