Norwegian Sailor - Christian S Pedersen

Christian Severen Pedersen was born in 1843 in Brevik, Telemark. He began a sailing career aboard a barque "Witch" in, I believe, 1858, which plied between UK, Marseille and Barcelona as a "cabin boy". In 1864 he sailed from London Victoria to Lytellton, Christchurch New Zealand. I have found one ship which could have been the right one, called the "Glenmark" which sailed from London in October 1864 arriving in Christchurch in January 1865. I cannot find a crew list for this ship to confirm this. I am trying to trace through an account I have of his life and keep looking for items like this which would confirm his journeys. He settled in Liverpool for almost 20 years, travelling on transatlantic ships, and finally emigrated to Australia with his family in 1892, where he eventually retired. I would love to know of any details which could confirm any aspects of his sailing career.