I found these grave stones in Seaforth Cemetery, Simons Town, Cape Province, South Africa.
Photo 1. at the bottom.
Gunner (MRLI) Percy Jefferies. Died 5/14/1902
Tom Peters. No 2 Krooman. HMS Monarch. Died 17/11/1901
Tom Peters No3 Krooman HMS Monarch. Died 28/11/1898. Age 24 years
As a matter of info: Krooman was an ex-slave rescued from West Africa recruited into the Royal Navy. Kroo tribe of Liberia.