Goku's Family Tree

The end of the Family is not Goku Jr. There Is way more. (Uks Means Unknown Spouse)

Grandpa Gohan

Bardock                                    Uks

Raditz               Goku                                Chi-Chi   Hercule   Uks

Valese      Goten     --      Gohan             Videl

C.J        Goten.Jr           Haun                    Pan

Uks      Goten the 3rd     Golan                 Videl.Jr

Goten the 4th                       Goku.Jr          Uks

Gohan The Third

Basicly (Ignore Uks)
Bardock (Adoptive Son of Grandpa Gohan Father Of Raditz and Goku, Grandfather of Goten and Gohan, Great granfather of Pan and Goten.Jr, Great Great Granfather of Videl.Jr and Goten The Third, Great Great Great Grandfather of Goten The 4th and Goku Jr, Great Great Great Great Grandfather of Gohan The Third)

Goku