Gander Family, Hurstpierpoint in the 1700-1800's

I have traced my ancestry from Australia back to Hurstpierpoint. William Gander born in 1710, who married Elizabeth Harris

then his son Henry born 1739, who married Elizabeth Harland

his son Henry born 1764, who married Tabitha Batchelor

his son James born 1785, who married Elizabeth ?

his son Charles born in 180?

to my great grandfather Albert John born 188? and married LucyAnn Day Cole, immigrated to Australia wher he died 1964 in Camden

my grandfather Alan James born 1911 died 1981 in Camden Australia

my father Robert James born 1936 in Australia (still living).

I have as yet not uncovered any documents which can substantiate this bloodline, and wondered if anyone can help?