Wikidata:SPARQL query service/queries/USPres via P6

  # Alternative query for the
  # President and First Lady of the United States

SELECT ?pres ?presLabel ?wife ?wifeLabel WHERE {
   wd:Q30 wdt:P6 ?pres .
   ?pres wdt:P26 ?wife .
   SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
   }
 }

Run this
When transcluded from a wiki page, the query above will be turned into a URL suitable to include in a link