Fr Frank Browne SJ was a friend and colleague of Fr Doyle’s during the war, serving alongside him in the trenches. He is mentioned several times throughout O’Rahilly’s biography. We have already mentioned Fr Browne in other posts, for instance here
Fr Browne survied the war, and took thousands of photographs of Irish life over the next 40 years. Here is a link to a newspaper story about a new book of Fr Browne’s photography.