prefix bio: <http://purl.org/vocab/bio/0.1/> 
prefix foaf: <http://xmlns.com/foaf/0.1/> 
prefix time: <http://www.w3.org/2006/time#> 
prefix xsd:  <http://www.w3.org/2001/XMLSchema#>
prefix ex: <http://example.org/ex#> 
prefix thing: <http://example.org/thing#> 

select ?name where {
  ?p ex:subject thing:widford .
  ?p ex:property ex:partOf .
  ?p time:start ?start .
  ?p time:end ?end .
  ?p ex:value ?x .
  filter (xsd:integer(?start) <= 1841 && xsd:integer(?end) >= 1841) .

  ?p2 ex:subject ?x .
  ?p2 ex:property foaf:name .
  ?p2 time:start ?start2 .
  ?p2 time:end ?end2 .
  ?p2 ex:value ?name .
  filter (xsd:integer(?start2) <= 1841 && xsd:integer(?end2) >= 1841) .
}