Dale Jr. does not have any children.
Dale Sr. had four children. He had two sons, Kerry and Dale Jr. and two daughters, Kelley and Taylor Nicole.
Dale Jr. has one older half-brother named Kerry. He also has two sisters, an older sister named Kelley and a younger half-sister named Taylor Nicole.
Yes, there are many biographies on Dale Jr.
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A lot
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Dale Earnhardt Sr. led 107 laps in the 1998 Daytona 500.
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one
Dale Earnhardt Sr. had just one start, the first race of the season. It was the 2001 Daytona 500, in which Dale Sr. was killed on the last lap.
Dale Jr. has one older half-brother named Kerry.