Census 1871 Sheffield, Yorkshire, England (Edwin Savage)

Name,Relation,Condition,Sex,Age,Occupation,Where Born,Infirmity James Mount,Head,Mar,M,55,File Lighter,Nantwich, Cheshire, England, Elizabeth Mount,Wife,Mar,F,47,,Sheffield, Yorkshire, England, Albert Thompson,Son in Law,Unm,M,16,,Sheffield, Yorkshire, England, Emma Savage,Daughter,Mar,F,23,Milliner,Sheffield, Yorkshire, England, Edwin Savage,Son in Law,Mar,M,31,Moulder,Sheffield, Yorkshire, England,

Presumably Albert Thompson should be shown as a Step son of James Mount, not a Son in Law.