They were missionaries that were sent to Mozambique by Nkhoma Synod to set up a Reformed Church.
There are now 3 Synods, 4 Presbyteries in Tete, and 4 in Zambesia and 70,000 members.
The Synod affirms the Apostles Creed, Belgic Confession, the Heidelberg Catechism and the Canons of Dort.
[1][2] The Christian Reformed Church in North America supports the Synod.
The development in self-understanding of the CCAP Nkhoma Synod as church during the first forty years of autonomy: An ecclesiological study.