My brother told me an amusing story from when he was in Cameroon - he was eating some mangoes with the locals he was working with and they were referring to the cultivars of the fruit they were eating by different numbers ("Mango #5", "Mango #2", etc). He assumed these were the arbitrary names given by the creator of the breed, so he asked which one was the best. "Mango #1 is the best, Mango #2 is the second best, etc". Apparently this was the widespread nomenclature beyond just the group he was with! I admire the naming efficiency.
I was curious if anyone here was familiar with Cameroon mangoes, and if so what the different cultivars are called in the US? Would be fun to track some down for him at some point.