Namesakes
Hall-of-Famers:
1 baseball, 1 football, 1 ice hockey
(ice hockey) Gordon "Duke" Keats (a.k.a. Duke) 1958 
(baseball) Edwin "Duke" Snider (a.k.a. Duke) 1980
(football) Duke Slater 2020
Notable Athletes:
1 baseball, 1 swimming
(swimming) Duke Kahanamoku 1890-1968
(baseball) Edwin "Duke" Snider (a.k.a. Duke) 1926-2011
Notable Musicians:
1 musician
Edward "Duke" Ellington (a.k.a. Duke) 1899-1974
Olympic Medalists:
1 silver/gold
(silver/gold) Duke Kahanamoku 1912; 1920; 1924 swimming - 100 m freestyle; swimming - 4x200 m freestyle relay