The last known World War I veteran died in her sleep in King’s Lynn, a town in eastern England just north of London. Florence Green, who was approaching her 111th birthday this month, was a mess steward at Royal Air Force bases in Marham and Narborough. Green joined the Women’s Royal Air Force in 1918 at the age of 17. She married at age 19 and spent most of her life working at a hotel in her hometown. The last living combat veteran of World War I died at age 110 in May 2011.