When World War II began, men from all over the country were enlisting in the army, leaving the assembly line workforce lacking in employees. Women began taking on jobs in manufacturing, transportation, utilities, and many more to help keep things moving. 21-year old Eunice Hancock was one of the women who ended up working at the Midwest aircraft plant, learning how to operate a compressed-air grinder. Around 2 million women ended up joining the workforce at that time, most of which were helping produce machinery and armaments for the ongoing war.