AUBURN — A new judge is expected to be installed at Androscoggin County Superior Court next month to replace recently appointed U.S. Attorney Thomas Delahanty II, who had presided over cases here for more than two decades.

Justice MaryGay Kennedy is finishing up her case load at 9th District Court in Portland, where her replacement soon will be trained.

Kennedy, of Brunswick, was appointed to the Maine District Court in 2007. Before that, she was a practicing lawyer with Germani and Riggleand and McTeague, Higbee, MacAdam, Case, Cohen and Whitney. She was also the founding director of the Maine Court Appointed Special Advocate program. Kennedy earned a degree from the University of Maine School of Law.

Gov. John Baldacci nominated her to the Maine Superior Court in July.

Kennedy is expected to assume her assignment at Androscoggin County Superior Court and be sitting on cases by mid-October, Maine Superior Court Chief Justice Thomas Humphrey said Wednesday.

Delahanty was sworn in as U.S. Attorney in Portland on Aug. 6.

Kennedy is expected to begin presiding over criminal cases in October and to continue through November at the Auburn courthouse. In December, she’s expected to sit on civil cases, Humphrey said.

Two other former Maine District Court judges have been assigned to Maine Superior Courts, Humphrey said.

Ann Murray of Bangor is assigned to Penobscot County Superior Court and is expected to begin sitting on cases there in mid-October. She was chief judge of Maine District Court in Bangor. She has been a district court judge since 1999.

Murray’s cousin, Robert Murray, also of Bangor, is assigned to Kennebec County Superior Court in Augusta and is expected to begin presiding over cases there next month. He was appointed district court judge in Bangor in 2004. Before that, he served as commissioner at the Department of Professional and Financial Regulation.

Both Murrays worked as lawyers at private firms and are graduates of the University of Maine School of Law.

Ann Murray also worked at the Penobscot County District Attorney’s Office. Robert Murray had served four years in the Maine Legislature as a member of the House of Representatives.

Taking the place of the three incoming Maine Superior Court justices are:

— Susan Oram of Auburn, who served as a family law magistrate since 2003. She had been an lawyer at a firm in Lewiston. She is a graduate of the Vermont Law School.

— Bruce Jordan of Veazie, who served as a family law magistrate since 1998. He graduated from Franklin Pierce Law Center in Concord, N.H. He worked as a lawyer before working for the court.

— Patrick Ende of Hallowell, who served as Baldacci’s chief legal counsel for the past two years. He also served as a senior policy adviser for the governor, covering several departments. Before that, he was litigation director for the Maine Equal Justice Partners. He worked as a lawyer at Pine Tree Legal Assistance. He’s a graduate of New York University School of Law.