His house is still visible and marked with a plaque and his house , by the river in Kingston , is also marked .
Cesar Picton -- a black servant from Senegal lived in Thames Ditton and ran a successful coal business from Kingston .
Cesar Picton 's house is still visible and marked with a plaque and his house , by the river in Kingston , is also marked .
Cesar Picton -- a black servant from Senegal lived in Thames Ditton and ran a successful coal business from Kingston .