Looking for Ole Larsen

Hello Can anyone help me find information about my husband's great grandfather? I have the marriage certificate for his second marriage in New Zealand in 1889. At that time he was 49. He was born in Gjerpen, Norway. His father was Lars Sivertsen, a farmer and his mother Maline Gurine Sivertsen. Her maiden name was Olsen. I am not sure if I have got Maline's second name correct as it is hard to read the handwriting on the marriage document. His first wife was called Marea and she died in New Zealand in 1887. I don't know anything else so I don't know if he came to New Zealand on his own, with parents, or with Marea. My husband and I would love to know some more. Heather