University of Bristol - Historical Photographs of China reference number: Ca02-104.
Photo from an album (UoB reference Ca02).
Peking (Beijing) Observatory (Guanxiangtai).
See Ca02-015 (a similar photo).
Dr MaryTiffen has a well labelled print:
Back row: Mr Wintour, Mr Bethel, Mr Ferguson.
Front row: Maude Carrall, Elsa Drew, Kath Carrall, Effie Ragsdale, Mrs Hansard and Mr de Luca.
Black and white photograph
Special Collections, Queen’s University Belfast