All Tennis Players How Many Grand Slams Has William Clothier Won? William ‘Bill’ Jackson Clothier (September 27, 1881 – September 4, 1962) was an American tennis player.William Clothier has won 1 Grand Slam. Facebook Twitter Email How Many Grand Slams Has Aryna Sabalenka Won? How Many Grand Slams Has Carlos Alcaraz Won? How Many Grand Slams Has Elena Rybakina Won?
