Volume XI (1915)
As of the end of Volume XI, Wulfenbach is missing and presumed dead in the destruction of the Great Hospital.
Spring 1988, Volume XI, Issue I.
Volume XI contained the biographies of 586 noteworthy Canadians who died between 1881 and 1890.
Flight, Volume XI, Issue 25, No. 547, 19 June 1919, pp.
Flight, Volume XI, Issue 22, No. 544, 29 May 1919, pp.
Volume XI, Issue 28, No. 550, 10 July 1919, pp.
Middle East Contemporary Survey: Volume XI - 1987.
Dictionary of Canadian Biography; Volume XI, 1881 to 1890.
Official History of Australia in the War of 1914-1918, Volume XI.