One day in early 1918, Florence, while serving with the Women’s Royal Air Force (WRAF) at Fowlmere, Cambrideshire, England, cycled out to nearby Duxford Air Field, then being used by the American Expeditionary Force.
Here she came across Sergeant Anton W. Van Stockum, a native of Holland, also cycling, who, after emigrating to the United States, had volunteered for the U. S. Army Air Corps.