<Tr> <Th> Alden Knipe </Th> <Td> Iowa </Td> <Td> </Td> </Tr> <Tr> <Th> John Mackovic </Th> <Td> Illinois </Td> <Td> </Td> </Tr> <Tr> <Th> Walter McCornack </Th> <Td> Northwestern </Td> <Td> </Td> </Tr> <Tr> <Th> Bo McMillin </Th> <Td> Indiana </Td> <Td> </Td> </Tr>

Who won the big ten championship in football