Many thanks to one of my readers who was able to help solve the mystery of who  Alcazar d’Ete was.  It was the name of a former Parisian Music Hall that was taken over during the war by the American Fund for French Wounded. There is a link pasted below that includes a wonderful photo from New York Times, March 1917 illustrating the type of boxes that were sent to Norman which she described receiving in her last letter of 7th February 1918.