Thomas & Mary had 6 children that we know of ....
James married Edna - [name removed ] their son is very interested in "the tree" - I have yet to contact him with all the information you are discovering - BUT you do not mention James - and he certainly existed!
Hello Judith Mullin ... welcome to RootsChat.
The following appears to be the birth registration for the "missing" James.
It appears on the NZ Birth index (online version) as >
1904 / 19457 - JACKSON - James Patrick
Mother: Mary
Father: Thomas From another resource, I can tell you that this birth was registered (third quarter 1904) at Patea (Taranaki).
NZ Death Index1969 - JACKSON - James Patrick - aged 64 years [= born circa 1905 ]
[Date of death (from cemetery record) 16 March 1969 ]
There is also a Probate record held for this man at Archives New Zealand (Wellington office) ... usually this would be accessible for viewing online, however the link to same (Wellington probates) @familysearch website, is not currently working.
James Patrick JACKSON is buried at Taihape Cemetery, the record for which states he was the husband of "Edna Mavis" ... and father of ....
[names not recorded here in this thread to protect privacy of living persons].NZ Marriage Index James Patrick JACKSON - Edna Mavis de BERRY -- Year : 1931 ~ Lu