Title
Insignia. Librarian/Hostess Semi-Circle patch.
Description
During World War II, the Army initially provided librarians the same insignia as its hostesses: a colorful semi-circle that was sewn onto garrison caps and the left-hand shoulder of uniforms. Towards the end of World War II, Army librarians argued they should have their own insignia because their work was entirely different from Army hostesses. After the war ended, a blue-and-white square patch became the official insignia for Army librarians.
Source
From the Collection of Molly Guptill Manning