 However, in terms of denominations today which could be identified as "biblical unitarian", the two most visible names are the Church of God General Conference (CoGGC), with 5,000 members in the USA, and Christadelphians, with 60,000 members worldwide.Both of these groups share nontrinitarian, specifically Socinian, Christology and both have historians — Anthony Buzzard among CoGGC, the geographer Alan Eyre among Christadelphians — who have acknowledged works such as the Racovian Catechism and Biddle's "Twofold Catechism" as prefiguring and compatible with their beliefs.Christadelphians are more reserved than CoGGC in association with the name "Unitarian", given that the Unitarian Church still exists in Britain and many of its independent congregations are post-Christian.