Patrick O'Bryant – basketball player Mike O'Dowd – professional boxer Ian O'Leary – professional basketball player Troy O'Leary – MLB player, Boston Red Sox outfielder Ted Potter Jr. – professional golfer Jonathan Quick – NHL player, Los Angeles Kings Bob Quinn – current general manager of the Detroit Lions Dan Quinn – NFL head coach of the Atlanta Falcons John Quinlan – pro wrestler Ryan Max Riley – skier, US Ski Team Freddie Roach – former boxer, current boxing trainer Kevin Rooney – NHL player, New Jersey Devils Ryan Shannon – NHL professional hockey player, won the Stanley Cup with Anaheim in 2007 Sheamus – professional wrestler Kelly Slater – professional surfer Sam Snead – PGA Golf Hall of Famer Erik Spoelstra – NBA Head coach (Dutch-Irish American father) Giancarlo Stanton – MLB player, Miami Marlins outfielder John L. Sullivan – professional boxer, first Heavyweight champion of gloved boxing Gene Tunney – professional boxer Mickey Walker – professional boxer Andre Ward – professional boxer Mickey Ward – professional boxer Lenny Wilkens – professional basketball player Aaron Rodgers – NFL player, Green Bay Packers Tom Harmon American football – former NFL player Others Billy the Kid – gunslinger Thomas Fitzpatrick (trapper) – aka Thomas Fitzpatrick broken hand. John Kinney Gang Lawrence Murphy Bill Doolin Hugh Glass John Daly (outlaw) Hopalong Cassidy Jesse Lincoln Driskill Cowboy 1824–1890 Tom O'Day Sir William Johnson, 1st Baronet George Shannon (explorer) Joseph Breen – Production Code director Frank E. Butler – marksman The "Unsinkable" Molly Brown – born Molly Tobin; Irish-born father R. Nicholas Burns – American diplomat, Harvard professor, columnist and lecturer; 19th Undersecretary of State for Political Affairs; 17th United States Permanent Representative to NATO; United States Ambassador to Greece 1997–2001 Mark Calaway – pro wrestler with the WWE, known as the "Undertaker" John Chambers (1922–2001) – Academy Award-winning makeup artist Cheiro – astrologer Eileen Collins – first female commander of a Space Shuttle Éamon de Valera – third president of Ireland John Dunlap – printer, printed the first copies of the Declaration of Independence Wyatt Earp – lawman Henry Louis Gates – professor at Harvard University Cedric Gibbons – art director Ann Glover – hanged as a witch in Boston Dan Harrington – world poker champion James Healy – Bishop of Portland, America's first African-American bishop; born a slave according to the laws of Georgia to an Irish immigrant and his beloved African