PERSON@1 -LRB- March NUMBER@1 , NUMBER@2 -- April NUMBER@3 , NUMBER@4 -RRB- was a MISC@1 farm worker , labor leader , and civil rights activist who , with PERSON@2 , co-founded the ORGANIZATION@1 , which later became the ORGANIZATION@2 -LRB- ORGANIZATION@3 -RRB- .

PERSON@1 -LRB- March NUMBER@1 , NUMBER@2 - April NUMBER@3 , NUMBER@4 -RRB- was the leader of a labor union . PERSON@3 started the ORGANIZATION@1 -LRB- ORGANIZATION@4 -RRB- .
