Charles Daniel Helm (28 September 1844 – 14 September 1915) was a Protestant missionary and trusted confident of King Lobengula of Matabeleland who played a controversial role as an interpreter during the drafting and signing of the Rudd Concession with agents of Cecil Rhodes's British South Africa Company in 1888.Helm was born in Suurbraak, Cape Colony on 28 September 1844, the son of Daniel Helm, the missionary there. His maternal grandfather was William Anderson. He trained as a missionary at New College, London where he met Baroness Elizabeth von Puttkamer whom he married in 1873. Wikipedia