I would be glad to give you the information on the Loudens in New Zealand.
James Louden (from Scotland) married Sarah Maddox on Feb 14th 1843 - I have no idea when James came to NZ but I do know when Sarah Maddox did. She came on the Bolton in 1840 , she was a servant for a Rev John Frederick Churton.
James and Sarah had 5 children - James Louden (b. 4/11/1843), John Edward Louden (b 18/12/1847), John Louden (b. 1/1/1849), Edward Louden (b. 1853?), Ellen Catherine Louden (b. 02/11/1852). I am descended from Edward Louden.
Which do you think that you come from? If you want more information about Edward Louden I can give it but I don't have any information about his siblings besides their bith dates and place of birth. Thanks Rachel