Gerald F. Corcoran named Chief Operating Officer and Director of RJO. Posted: August 9, 1992 / Timeline
Mayor Richard M. Daley proclaims October 17 as R. J. O’Brien Day in Chicago Posted: August 9, 1989 / Timeline
Gerald F. Corcoran joins RJO and is named Chief Financial Officer. Firm has approximately 35 employees. Posted: August 9, 1987 / Timeline
John W. O’Brien, Sr., son of Robert J. O’Brien, Sr., named CEO of RJO. Posted: August 9, 1986 / Timeline