. . "Johnston, Clarence Howard Architekt, USA" . . "Architekt, USA Clarence Howard Johnston" . . "Johnston, Clarence Howard Architecte, Etats-Unis" . "Johnston, Clarence H. (Clarence Howard)" . "Howard"@en . "1936-12-29" . . "Clarence H. Johnston" . . "Clarence H. Johnston"@en . . "H." . "Clarence Howard Johnston" . . "Clarence"@en . "1859-08-26" . "http://www.wikidata.org/entity/Q6581097" . "Clarence Howard" . "Johnston"@en . "Johnston, Clarence Howard Architect, United States" . "Architect, United States Clarence Howard Johnston" . "Architecte, Etats-Unis Clarence Howard Johnston" . "Clarence Howard Johnston"@en .