Often considered the greatest defenseman of all time, Bobby Orr shattered his fair share of records. He ranks first in franchise history in plus-minus with an absurd plus-589 rating and second in points-per-game with 1.41. He holds the NHL single-season records for points by a defenseman (139) and plus-minus (plus-124). During his injury-shortened career, Orr won eight Norris Trophies, two Art Ross Trophies and three consecutive Hart Trophies. He also claimed the Conn Smythe Trophy twice as MVP of the playoffs, leading Boston to the Stanley Cup in 1970 and 1972. His legendary number (4) was retired in 1979, and he was inducted into the Hockey Hall of Fame the same year. 

Ray Bourque played more games in a Bruins sweater than anyone else. In his 1518 games for Boston, he mustered a franchise-leading 1506 points. He is also the franchise leader in assists and power play goals. He ranks first all-time in career points amongst NHL defensemen and he was honored with the Norris Trophy as the league's top blue-liner five times. He was named to the NHL's First or Second All-Star team 19 times in his 21 year career. He still stands as Boston's longest tenured Captain, wearing the "C" from 1988 to 2000. His number (77) was retired in 2001 and he entered the Hall of Fame in 2004.