I would like to add Curtis Martin into this discussion, in his 11 year career he fumbled just 29 times (lost just 16 of them) at an average of 2.6363 times per year. He also was the featured back all 11 of those years, with 319 carries per year (And 44 receptions per year) and only not making the 1000 yard mark in his final season due to injury.
Herschel Walker wore #34 during his NFL career.
When Ty Cobb played baseball they did not issue numbers on the uniforms. So he never had a number during his entire career.
Chad Greenway is number 52 on the Minnesota Vikings.
Horace Clarke wore #20 during his career (1965-1974) with the New York Yankees.
Yes. The running back will get credit for the number of yards past the line of scrimmage the fumble occurred. If the line of scrimmage was at the defense's 20 yard line and the fumble occurred at the defense's 14 yard line, the running back would be credited with 6 yards rushing. If the line of scrimmage was at the defense's 14 yard line and the fumble occurred at the defense's 20 yard line, the running back would be credited with -6 yards rushing.
#44
Calvin Hill wore the number 35 during his career in the NFL, primarily with the Dallas Cowboys. He was known for his impressive running style and contributions to the team during the late 1960s and early 1970s. Hill also had significant success in college football at Yale before his professional career.
Kimble Anders wore #38 during his ten year career (1991-2000) with the Kansas City Chiefs.
Magic Johnson has scored 17,707 points during his career in the NBA. He has a career average of 19.5 PPG during his career.
Ron Francis wore number 10 during his career in the NHL.
Mike Pruitt, the former NFL running back, wore the number 30 during his time with the Cleveland Browns. He played for the Browns from 1976 to 1984 and also had stints with the Kansas City Chiefs and the Atlanta Falcons. His number 30 became recognizable among fans during his successful career.
During his career with the Cowboys, Roger Staubach wore jersey number 12.
During his NBA career, Wilt wore #13.
Elvis
Roger Staubach wore #12 during his career with the Cowboys.
Herschel Walker wore #34 during his NFL career.
It was his number as a college running back at the University of Florida.