Robert McCormick invented a hempbrake, but it was his son Cyrus who came up with this machine
[DOC] [TLE] Full text of "The life and works of Robert McCormick including his ... [PAR] In June Brother Cyrus came down to Staunton to see me, and I remember how ... 
Ma persuaded Father to give the invention of the reaper to Brother Cyrus, and it 
took ....