I Am Researching the Deam Family That Migrated Fom England to New Zealand

I am researching the DEAM family that migrated fom England to New Zealand and settled here i have started with my Dad and working back down the line to his parents to their parents and so on and so on

[b]DEAM, Robert Micheal brn, 1960 Patea Taranaki NZ he married
[b]NATHAN Anne brn, 1962 Hamilton, Waitako, NZ ( Childern - Cherie 23, Laura 22, Kristin 19 & Sara-Louise 16 and my self 26)

DEAM, Robert George brn, 1936, died Dec 1992 Hawera, Taranaki, NZ married Shirley RAILTON brn 1955 Other childern Gary, Grant & Theresa

[b]DEAM, John Charles brn 1889 Paeroa NZ died 1961 Hawera NZ, married Louisa [b]EDGCOMBE brn, 1897 Kaponga NZ died 1939 Hawera NZ usure on other childern

[b]DEAM,John brn, 1853 Southdowns, Redruth, Cornwall England died 1927 Thames NZ married Sarah [b]SIMPSON brn, 1869 died 1936 Auckland NZ unsure of other childern

[b]DEAM, James brn 1811 Exmouth, Devon England (unknown death date) married Mary [b]JAMES brn 1921 England (unknown death date) unsure of other childern

thats as far as i have gotten any other informaton will be greatly appreciated