, At the 1881 census, he was recorded: Birth Year <1862> Birthplace Bavaria Age 19 Occupation (Student) Marital Status U Head of Household D'ARCHY W. THOMPSON Relation Undergraduate Disability Source Information: Institution Trinity Col.Dr.Whewell's Bldgs.Trinity &SidneySt Census Place Cambridge, Cambridge, England Family History Library Film 1341399 Public Records Office Reference RG11 Piece / Folio 1669 / 112 Page Number 51 Professor of Physics, Liverpool. d.s.p.