University of Bristol - Historical Photographs of China reference number: WC01-171. Perhaps the family members are Mrs (Carrie/Caroline) Boyd Cooper holding Beatrice, with her sister Edie Lovelock on the right and Brian Boyd Cooper on the right at the front? The footbridge in the background is similar to one at Tangshan South Railway Station, depicted on page 119 of Imperial Railways of North China by Peter Crush.
Boyd Cooper family members at a railway station
Black and white photograph
University of Bristol Library, Special Collections