Walsh's son Kevin said his father died Friday morning at Christiana Hospital in Newark after a battle with cancer.
Walsh, who received his law degree from Georgetown University in 1954, was appointed a Superior Court judge in 1972.
Walsh became a Chancery Court judge in 1984, serving only a year before being appointed to the Supreme Court in 1985. He retired in 2003.
Walsh is survived by his wife, Madeline, six children, 16 grandchildren and five great-grandchildren.
A funeral mass is planned for next week at St. Joseph on the Brandywine in Greenville, with Bishop Francis Malooly of the Catholic Diocese of Wilmington presiding.
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