Jonathan Davidson
... that Lieutenant-Colonel Jonathan Davidson used his civilian experience as a civil engineer to improve his battalion's trenches during the First World War?
... that <a class="mw-redirect" href="./Lieutenant-Colonel" id="mwChY" rel="mw:WikiLink" title="Lieutenant-Colonel">Lieutenant-Colonel</a> <b id="mwChc"><a href="./Jonathan_Davidson" id="mwChg" rel="mw:WikiLink" title="Jonathan Davidson">Jonathan Davidson</a></b> used his civilian experience as a <a href="./Civil_engineer" id="mwChk" rel="mw:WikiLink" title="Civil engineer">civil engineer</a> to improve his battalion's trenches during the <a class="mw-redirect" href="./First_World_War" id="mwCho" rel="mw:WikiLink" title="First World War">First World War</a>?