James George Deck was a British-born New Zealand evangelist.

The Plymouth Brethren or Assemblies of Brethren are a low church and Nonconformist Christian movement whose history can be traced back to Dublin, Ireland, in the mid to late 1820s, where it originated from Anglicanism. The group emphasizes sola scriptura, the belief that the Bible is the only authority for church doctrine and practice. Plymouth Brethren generally see themselves as a network of like-minded free churches, not as a Christian denomination.