Duffy served as an Assistant United States Attorney (1958–1959) and assistant chief of the Criminal Division (1959–1961) at the office of the United States Attorney for the Southern District of New York before going into private practice as an associate with the New York City firm Whitman, Ransom & Coulson (1961–1966).
Teri was the most successful associate at Greene Norris, winning the most cases and bringing in the most business.
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An expert in labor arbitration, Fennell was first an associate and then a partner beginning in 1943 at Shearman & Sterling, a law firm in Manhattan.
Williams became an associate attorney for the firm of Morgan, Lewis & Bockius from 1988–1990 and focused on white collar criminal defense.
That same year she passed the California bar and went to work as an associate attorney at the Writers Guild of America.
On January 5, 2009, President-elect Barack Obama nominated Thomas J. Perrelli as the 18th Associate Attorney General of the United States.