Black Soldiers in WW1. Can you help?

We know most of the nations and nationalities that passed through Folkestone during the First World War. We believe that among these soldiers of the British West Indies Regiment might be included as several battalions of the BWIR served on the Western Front. Do you know of any black soldiers, ancestors perhaps, who boarded the troop ships at Folkestone Harbour? If so please do contact us urgently at [email protected]