David Lloyd George was supposed to accompany Field Marshall Kitchener on the Hampshire but a late minute change of plans meant he did not.
What would have been the effect of Lloyd George dying June 1916?
At this point in time, Herbert Henry Asquith, was still Prime Minister, leading the nation into the First World War, but after a series of military and political crises led to his replacement in late 1916 by David Lloyd George.
So with out, David Lloyd George, Asquith would most likely be replaced by Andrew Bonar Law, who in June 1916 was Chancellor of the Exchequer, Leader of the House of Commons and Leader of the Conservative Party.
Another thing that Lloyd George's death would play is whether the Liberal Party, will remain united behind Asquith, instead of splitting up the party leading to its downfull.
Many historians stress that Asquith had high administrative ability , and argue that many of the major reforms popularly associated with Lloyd George as "the man who won the war" were actually implemented by Asquith.
So it depends on whether we have Asquith carry on as Prime Minister or give Andrew Bonar Law a longer time in office.