From 1917 to 1921, Morgan took residence near the French front, not far from both Soissons and the "Chemin des Dames" at Blérancourt, and ran a formidable help organisation, The American Friends of France (it employed several hundred people at a time, volunteers from abroad and locally recruited staff), financed partly out of her own deep pockets, partly with the help of an active network in the States. The AFF (aka American Committee for Devastated France) was active in succoring noncombatants, organizing a health service that still exists in Soissons, a workshop to provide basic furniture to bombed-out families, a holiday camp for children, and a mobile library that was taken over by the library in Soissons, and so on. She returned in 1939 to help the Soissons evacuees.