<Tr> <Td> Railroad workers; Workingmen's Party </Td> <Td> Federal troops </Td> </Tr> <Tr> <Th_colspan="2"> Lead figures </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> </Td> <Td> Monroe Heath </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> </Td> <Td> Monroe Heath </Td> </Tr> </Table>

Why is the great railroad strike of 1877 important