William Ruthven Smith
... that in 1917, engineer William Ruthven Smith drew a 6,000-foot (1,800 m)* anti-submarine net across the channel at Hampton Roads?
... that in 1917, <a href="./United_States_Army_Corps_of_Engineers" id="mwEqc" rel="mw:WikiLink" title="United States Army Corps of Engineers">engineer</a> <b id="mwEqg"><a href="./William_Ruthven_Smith" id="mwEqk" rel="mw:WikiLink" title="William Ruthven Smith">William Ruthven Smith</a></b> drew a <span about="#mwt40" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"6000"},"2":{"wt":"ft"},"3":{"wt":"m"},"r":{"wt":"-2"},"adj":{"wt":"on"}},"i":0}}]}' id="mwEqo" typeof="mw:Transclusion">6,000-foot (1,800</span><span about="#mwt40" typeof="mw:Entity"> </span><span about="#mwt40">m)</span><sup about="#mwt40" class="noprint Inline-Template" style="white-space:nowrap;"><a href="./Help:Convert_messages#invalid_option" rel="mw:WikiLink" title="Help:Convert messages"><span title='Convert: Ignored invalid option "r=-2"'>*</span></a></sup><span about="#mwt40" class="error" id="mwEqs"></span> <a href="./Anti-submarine_warfare" id="mwEqw" rel="mw:WikiLink" title="Anti-submarine warfare">anti-submarine</a> net across the <a href="./Channel_(geography)" id="mwEq0" rel="mw:WikiLink" title="Channel (geography)">channel</a> at <a href="./Hampton_Roads" id="mwEq4" rel="mw:WikiLink" title="Hampton Roads">Hampton Roads</a>?