It should be noted that if Canadian Business could not determine the net worth of someone (e.g. Canadian Prime Minister Paul Martin whose family owns Canada Steamship Lines), they did not include them on the list.
Forbes.com: Forbes World's Richest People - By country of citizenship (http://www.forbes.com/lists/results.jhtml?passListId=10&passYear=2004&passListType=Person&searchParameter1=unset&searchParameter2=unset&resultsStart=1&resultsHowMany=25&resultsSortProperties=%2Bstringfield11%2C-numberfield3&resultsSortCategoryName=Country&passKeyword=&category1=category&category2=category)
Forbes.com: Forbes World's Richest People - By country of residence (http://www.forbes.com/lists/results.jhtml?passListId=10&passYear=2004&passListType=Person&searchParameter1=unset&searchParameter2=unset&resultsHowMany=25&resultsSortProperties=%2Bstringfield7%2C%2Bstringfield8%2C%2Bstringfield9%2C-numberfield3&resultsSortCategoryName=Country&fromColumnClick=&bktDisplayField=&bktDisplayFieldLength=&category1=category&category2=category&passKeyword=&resultsStart=1)