From Wikipedia:
Winston Cooper (c.1939–1995), better known as Count Matchuki or Count Machuki, was the first Jamaican deejay.
Cooper was born c.1939 in Kingston, Jamaica, and began working on sound systems in the 1950s, when the music played was largely American R&B. His stage name of Count Matchuki derived from his habit of chewing matchsticks. He initially worked on Tom Wong's Tom the Great Sebastian system and later the Tokyo the Monarch system, before moving on to Clement "Coxsone" Dodd's Downbeat Sound System. He added talkovers to the songs, emulating the jive talk of American radio DJ's at the request of Dodd, who became familiar with the US style on his visits to the States to buy records to play on his sound system. He thus originated a deejay style that was later developed by artists such as U-Roy, and which eventually led to rap.
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From Reggaepedia:
Count Machuki started out as a disc selector in 1950 for Tom the Great Sebastian (b. Tom Wong).
Machuki later moved on to work with Clement Dodd and his Sir Coxsone's Downbeat. It was with Coxsone's sound on a Easter concert (1956?) that he first chatted on the microphone while selecting records and thus creating what was going to be known as deejaying. What he did was to tell jokes over the music, mixed with American jive and slang. As the reaction of the people was very positive Machuki started to write down lyrics to use in future dances.
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