1841 (UK) Census Entry for Plymouth st, Merthyr Tydfil, Glamorgan, , Wales

• Head of household:
  Thomas William 
  Lewis
  (
  John
  ) 1818 - 1900
• Member of household:
  Mary Anne 
  John
  (
  Lewis
  ) 1809 - 1887
• Member of household:
  Catherine M. 
  Lewis
  1835 - post 1871
• Member of household:
  William Thomas 
  Lewis
  (
  ?
  ) 1837 - 1914
• Member of household:
  Henry 
  Lewis
  1840 - post 1851