[4] The party reached England on 8 September 1842,[5] and arrived at Spanish-controlled Santa Isabel on the island of Fernando Po in 1843.
[3] He visited Bimbia, Cameroon, in 1843 and spoke to King William of the Isubu people to request permission to establish a church on the mainland.
Merrick made excursions into the interior, as when he climbed Mount Cameroon and when he became the first non-African to visit the Bakoko people.
[3] On Merrick's death, Joseph Jackson Fuller took charge of the mission station and congregation at Bimbia.
[9] Joseph Merrick Baptist College in Ndu, Northwest Province, Cameroon, is named for him.