It was founded by a couple namely Robert Reid Kalley and Sarah Poulton Kalley, who arrived in Rio de Janeiro in May 1855 to begin mission work.
The evangelists and the Kalley's work spread to the North-eastern part of Brasil, specially in Recife and Pernambuco state.
Robert died in 1888 but Sarah continued to raise funds for Brazil.
Later it became the Union of Evangelical Congregational Churches in Brazil.
You can help Wikipedia by expanding it.This article related to religion in Brazil is a stub.