Simplify the following text for a Grade 9 native English-speaking person.
Original: Cid ( Sidney ) Corman ( June 29 , 1924 -- March 12 , 2004 ) was an American poet , translator and editor , most notably of Origin , who was a key figure in the history of American poetry in the second half of the 20th century .
Simplified: Cid ( Sidney ) Corman ( June 29 , 1924 -- March 12 , 2004 ) was an American poet well known for editing the magazine Origin .