Annie Caton Weldon 1850 1923

Hi I am interested in finding my relatives.
Annie Caton (weldon) emmigrated to NZ after being widowed.
She took 2 sons with her
Weldon frederick caton was one of them. he married Constance Gertrude Ormrod 1900-1971 in 1927
John william caton the other
They may have come to NZ via calamatta NSW Aus
One is reported to have been very tall,up to 7 feet
Any help Would be great.
Regards G