Intro
Dear readers, in our research on Ahmadiyya in Africa, we have found many new references.  This one here is:

The Muslim Resurgence in Ghana since 1950: Its Effects upon Muslims and Muslim-Christian Relations (Christentum und Islam im Dialog Christian – Muslim Relations)  by Nathan Samwini

https://books.google.com/books?id=tpnaeupe4gkC&pg=PA87&lpg=PA87&dq=Fante+Muslims+converted+to+ahmadiyya&source=bl&ots=jnzCj1G4cv&sig=93Vm4xxZLbo9w5cLyQOPUb-PUEU&hl=en&sa=X&ved=2ahUKEwjI3sT-nundAhWF-lQKHTZQDVMQ6AEwDXoECAYQAQ#v=onepage&q=Fante%20Muslims%20converted%20to%20ahmadiyya&f=false