I sent for a death cert from ww1 for granddad's nephew as he was missing presumed dead. He was mentioned on the thiepval monument to the missing. His death cert was interesting, athough a date was given on the commonwealth war graves site ,when the cert came it said it had been some time since the officer had been seen and so that's why the cert was issued. It said presumed killed somewhere in france or belgium. I had got the medal index card entry and address where he had been living prior to joining up. I also managed to get 2 photos of him from newspaper , walsall archives had 2 indexed books which listed entries for him in newspapers and i managed to get copies of the newspaper photos although one was bit grainey like some are. The phos where the following april when he had been dclared missing presumed dead the previous july. One of the papers carried cameo type photos and was entitled the toll of the brave and i think the one book's author was satterwaite. aAlso the longlongtrail site may give info of where his unit was. I am going to try for a war diary next.