Country School: Everyday Life At Baldock County Council School, Baldock, Hertfordshire, England, UK, 1944 [Getty Images]

Country School: Everyday Life At Baldock County Council School, Baldock, Hertfordshire, England, UK, 1944, Girls at Baldock County Council School enjoy a drink of milk during a break in the school day. According to the original caption, every child receives either a third of a pint or two-thirds of a pint of milk a day, and 'free milk is given to evacuees and poor children', circa 1944. (Photo by Ministry of Information Photo Division Photographer/ Imperial War Museums via Getty Images)

Imperial War Museums IWM/Getty Images