Robert McCormick invented a hempbrake, but it was his son Cyrus who came up with this machine
... of "Cyrus Hall McCormick and the Reaper," says that the son when 
but 15 ... successful type had thus been created; and he never departed from that 
type... [DOC] [TLE] Cyrus Hall McCormick [PAR] whichon Walnut Grove Farm, in Eockbridge CountyRobert ... for his sons 
three adjoining farms, the entire estate aggregating ... devise a reaping machine, 
and appears to have spasmodically ...