Viscounts Slim First holder William Joseph Slim, 1st viscount Slim * 1891 Records #3 Holders Family filter On/Off 1 William Joseph Slim, 1st viscount Slim * 1891 2 John Douglas Slim, 2nd viscount Slim * 1927 3 Mark William Rawdon Slim, 3rd viscount Silm * 1960 Corrections and Updates To suggest a correction or an update. Click Here