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Timeline

Robert O’Brien, Sr. appears on Tonight Show presenting “Great Western Grand Champion Steer” to host Joey Bishop.

Posted: August 9, 1968 / Timeline

Robert O’Brien, Sr. elected Chairman of the Board of CME and served two consecutive one-year terms through 1968.

Posted: August 9, 1967 / Timeline

An RJO employee, 22-year-old Sandra Stephens, becomes the first woman ever to work on the floor of CME.

Posted: August 9, 1966 / Timeline

Robert O’Brien, Sr. elected Second Vice Chairman of the Board of Governors of the Chicago Mercantile Exchange.

Posted: August 8, 1966 / Timeline

First branch office established – Russ Brooks: Harlan, Iowa.

Posted: August 9, 1965 / Timeline

RJO takes first delivery of the new Live Cattle contract, the first live commodity traded on the CME floor.

Posted: August 9, 1964 / Timeline

Robert O’Brien, Sr. elected to Board of Governors of Chicago Mercantile Exchange (CME) (served continuously from 1964-1977).

Posted: August 8, 1964 / Timeline

John V. McCarthy dies.

Posted: August 9, 1963 / Timeline

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