An enthusiastic audience filled the Chapel for a concert by New York concert singers, a gift of trustee John D. Rockefeller.  The group—American soprano Mrs. Seabury Ford, British tenor Mackenzie Gordon, Marguerite Hall, and American baritone David Bispham—reprised a concert they had given the previous April at the Mendelssohn Glee Club hall in New York.  The highlight of the evening was the group’s performance of British composer Liza Lehmann’s “In a Persian Garden,” taken from The Rubáiyát of Omar Khayyám.  The group’s accompanist was Victor Harris.