1881 (UK) Census Entry for 28 Emperors Gate, Kensington, London, , , England

• Head of household:
  William Sidney (Sidney) 
  de Mattos
  (
  Stevenson
  ) 1851 - c. 1891
• Wife:
  Katherine Elizabeth Alan 
  Stevenson
  (
  de Mattos
  ) 1851 - 1939
• Daughter:
  Helen (Snoody) Katharine 
  de Mattos
  (
  Dalton
  ) 1876 - 1949
• Son:
  Richard 
  de Mattos
  1877 - 1950