Emily Holden, born on September 25, 1974, is desperately seeking the twin sister who she only discovered existed relatively recently.
Holden is hoping someone from Northland, where she believes her sister was raised, will be able to help her.
To Holden's knowledge, she was born in the Wellington region, then sent to the Christian Orphanage, a private organisation that she was now investigating, after her mother died while she was an infant.
She currently knew very little of the orphanage, but was in contact with former workers of "the commune" at the time she and her sister were babies.
She was subsequently adopted by a family in the Wairarapa, where she remained until she was 8 before she returned to the Wellington region.