Bob; My line also traces back to William Jackson- actually Daniel who married Elizabeth Hawker.
Daniel to William b. 1826 then his son Tom b 1847 who married Rosannah Apperley.
They came to NZ about 1878 and had 10 children ( 3 born in the UK).
Tom's son Reginald b. 1889 was my grandfather.
His son Roy b 1924 my father.
Myself (Ian) born 1947' I have a son and daughter.
Two grandkids Anna and Elizabeth.
I have a good family tree on an Excel spreadsheet should you wish to see it let me know.

Look forward to hearing from you

regards

Ian Jackson