Other Christian denominations on the island include: Roman Catholic (since 1852), Salvation Army (since 1884), Baptist (since 1845) and, in more recent times, Seventh-day Adventist (since 1949), New Apostolic and Jehovah's Witnesses (of which one in 35 residents is a member, the highest ratio of any country). When did the Seventh-day Adventist arrive on the island