United States Quotes
- William of Norwich 1132 - 114
- William Orlando Darby 1911 - 1945
- William Overgard 1926 - 1990
- William P. Alford 1948 -
- William P. Bundy 1917 - 2000
- William P. Driscoll 1947 -
- William P. Leahy 1948 -
- William P. Merrill 1867 - 1954
- William P. Perry 1930 -
- William Parrish 1860 - 1949
- William Paterson 1745 - 1806
- William Pennington 1796 - 1862
- William Pepper 1843 - 1898
- William Pepperell Montague 1873 - 1953
- William Perry 1962 -
- William Peter Blatty 1928 - 2017
- William Peter Hamilton 1867 - 1929
- William Petersen 1953 -
- William Pfaff 1928 - 2015
- William Pickens 1881 - 1954
- William Poundstone 1955 -
- William Powell 1892 - 1984
- William Prescott 1726 - 1795
- William Proxmire 1915 - 2005
- William Quan Judge 1851 - 1896
- William Quigley 1961 -
- William R. Alger 1822 - 1905
- William R. Bradford 1933 - 2019
- William R. Brody 1944 -
- William R. Ferris 1942 -
- William R. Looney III 1949 -
- William R. Miller 1947 -
- William R. Walker 1830 - 1905
- William R. Webb 1842 - 1926
- William Rainey Harper 1856 - 1906
- William Randolph 1650 - 1711
- William Randolph Hearst 1863 - 1951
- William Raspberry 1935 - 2012
- William Rathje 1945 - 2012
- William Rawle 1759 - 1836