History of family Preradović from Gornja Krajina (Grubišno Polje etc) and their relation to the russian branch (general Nikolay Depreradovich etc), may be seen in the book published in Zagreb, Croatia in 1903, Znameniti Srbi XIX veka, year 2, 2, editor Andra Gavrilović, Zagreb. 1903. pp. 13. Also, book published in Belgrade in 1888, Milan Đ. Milićević, Pomenik znamenitih ljudi u srpskog naroda novijeg doba. pp. 572. For the list of Preradovićs (Serbs) murderd in Jasenovac concentration camp of Independent State of Croatia (NDH) during World War II, including Preradovićs from Grubišno Polje, where father of Petar Preradović was born see (offical in Croatia) Jasenovac Memorial site list of victims, where one could see a few Jovan Preradović, as was the name of Petar Preradović`s fater (http://www.jusp-jasenovac.hr Spomen Područje Jasenovac), or names of 100 Preradovićs on the list of victims on the list of victims of Jasenovac Research Institue, New York,
( https://web.archive.org/web/20120214102400/https://cp13.heritagewebdesign.com/~lituchy/victim_search.php?field=&searchtype=contains. Архивирано из оригинала 14. 02. 2012. г. Приступљено 11. 04. 2009.Недостаје или је празан параметар |title= (помоћ))
History of family Preradović from Gornja Krajina (Grubišno Polje etc) and their relation to the russian branch (general Nikolay Depreradovich etc), may be seen in the book published in Zagreb, Croatia in 1903, Znameniti Srbi XIX veka, year 2, 2, editor Andra Gavrilović, Zagreb. 1903. pp. 13. Also, book published in Belgrade in 1888, Milan Đ. Milićević, Pomenik znamenitih ljudi u srpskog naroda novijeg doba. pp. 572. For the list of Preradovićs (Serbs) murderd in Jasenovac concentration camp of Independent State of Croatia (NDH) during World War II, including Preradovićs from Grubišno Polje, where father of Petar Preradović was born see (offical in Croatia) Jasenovac Memorial site list of victims, where one could see a few Jovan Preradović, as was the name of Petar Preradović`s fater (http://www.jusp-jasenovac.hr Spomen Područje Jasenovac), or names of 100 Preradovićs on the list of victims on the list of victims of Jasenovac Research Institue, New York,
( https://web.archive.org/web/20120214102400/https://cp13.heritagewebdesign.com/~lituchy/victim_search.php?field=&searchtype=contains. Архивирано из оригинала 14. 02. 2012. г. Приступљено 11. 04. 2009.Недостаје или је празан параметар |title= (помоћ))
History of family Preradović from Gornja Krajina (Grubišno Polje etc) and their relation to the russian branch (general Nikolay Depreradovich etc), may be seen in the book published in Zagreb, Croatia in 1903, Znameniti Srbi XIX veka, year 2, 2, editor Andra Gavrilović, Zagreb. 1903. pp. 13. Also, book published in Belgrade in 1888, Milan Đ. Milićević, Pomenik znamenitih ljudi u srpskog naroda novijeg doba. pp. 572. For the list of Preradovićs (Serbs) murderd in Jasenovac concentration camp of Independent State of Croatia (NDH) during World War II, including Preradovićs from Grubišno Polje, where father of Petar Preradović was born see (offical in Croatia) Jasenovac Memorial site list of victims, where one could see a few Jovan Preradović, as was the name of Petar Preradović`s fater (http://www.jusp-jasenovac.hr Spomen Područje Jasenovac), or names of 100 Preradovićs on the list of victims on the list of victims of Jasenovac Research Institue, New York,
( https://web.archive.org/web/20120214102400/https://cp13.heritagewebdesign.com/~lituchy/victim_search.php?field=&searchtype=contains. Архивирано из оригинала 14. 02. 2012. г. Приступљено 11. 04. 2009.Недостаје или је празан параметар |title= (помоћ))