My apologies. The phrase 'two founding races' comes from here:
Report of the Royal Commission on Bilingualism and Biculturalism, Book I, General Introduction, Paragraph 21:
'We should point out here that the Commission will not examine the question of the Indians and the Eskimos. Our terms of reference contain no allusion to Canada's native populations. They speak of "two founding races," namely Canadians of British and French origin, and "other ethnic groups," but mention neither the Indians nor the Eskimos. Since it is obvious that these two groups do not form part of the "founding races," as the phrase is used in the terms of reference, it would logically be necessary to include them under the heading "other ethnic groups." Yet it is clear that the term "other ethnic groups" means those peoples of diverse origins who came to Canada during or after the founding of the Canadian state and that it does not include the first inhabitants of this country.'
Book I, Chapter 1, Paragraph 19:
'Still, as we have pointed out earlier, there is such a thing as a French culture and a British culture. Of course, the differences between them are not as great as they would be if either were compared to one of the many Asian or African cultures. In Canada, the Anglophones and the Francophones wear the same sort of clothing, live in the same sort of houses, and use the same tools. They are very similar in their social behaviour, belong to religions which are not exclusive, and share the same general knowledge. To a greater or lesser extent, they share a North American way of living. But at the same time the cultures of the two are clearly different in many important aspects, including modes of thought and even styles of life.'