The 99th Battalion (Essex), CEF, was an infantrybattalion of the Great WarCanadian Expeditionary Force. The 99th Battalion was authorized on 22 December 1915 and embarked for Great Britain on 31 May 1916, where, on 6 July 1916, its personnel were absorbed by the 35th Reserve Battalion, CEF to provide reinforcements to the Canadian Corps in the field. The battalion disbanded on 1 September 1917.[1]