Who Do You Think You Are? PAST IN PICTURES An exhibition exploring the role of dogs as both companions and workers in the First World War is currently on show at the Bishopsgate Institute in London 2015-05-12 - Dogs in the First World War Dog-gone When other methods of conventional communication had been cut during enemy bombardments, dogs like this one – pictured in France in May 1918 – were used to convey messages between positions.