Hi I am looking for relatives that were known to be living in the Durham area, The Lumsden family, consisting of husband, wife and daughter Jean. We know where they were in 1911 but by 1939 there is no trace of them. We know they were still alive and not known to have moved abroad. Can anyone help with how we might trace them. Ralph Lumsden was a coal miner but could have been called up to the army?