http://soguslodir.hi.is/id/1002824
www.heradsskjalasafn.is
www.skjalasafn.is
www.bjarnibenediktsson.is
www.borgarskjalasafn.is
http://is.wikipedia.org/wiki/Thor_Jensen
http://genealogy14.tripod.com/OlafurTryggvasonThors.html
http://wapedia.mobi/is/%C3%93lafur_Thors
http://www.althingi.is/cv.php4?nfaerslunr=452
http://is.wikipedia.org/wiki/%C3%93lafur_Thors