. "male" . "1940"^^ . . . "Sydney Nathans"@fr . "0000000082015652" . "VIAF" . "2013-08-09" . . . . "2013-01-30" . "To free a family : the journey of Mary Walker / Sydney Nathans, 2012. - . - LC Authorities. - http://authorities.loc.gov. - 2012-01-30"@fr . . "16659106"^^ . . . . . "Nathans" . . . . . "2013-08-08"^^ . . . "Sydney Nathans" . . "Sydney" . . .