Public domain
Miss Jeanne Dougherty, graduate in Bacteriology, working in the laboratory in the Dairy Industry Department. She is conducting experiments on the effect of acids on the flavor of butter. Iowa State College. Ames, Iowa
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineMiss Jeanne Dougherty, graduate in Bacteriology, working in the laboratory in the Dairy Industry Department. She is conducting experiments on the effect of acids on the flavor of butter. Iowa State Co. 1942-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.