Aronstein, An Irrepressible Professor, Dies at 78 (continued)
By Larry Teitelbaum

“He was a teacher at heart,” said former student Marlene Lachman L’70, who is now a judge on the Philadelphia Court of Common Pleas. “He really wanted students to learn.” In fact, Lachman said, he continued to mentor young lawyers at Philadelphia-based Morgan, Lewis, and Bockius after he retired from Penn in 1986.

Aronstein, also a partner at Ballard, Spahr, Andrews & Ingersoll in Philadelphia, was a member of the American Law Institute and the American Bar Association, where he was the reporter for the Committee on Stock Certificates and the chair of the Subcommittee on Investment Securities. In addition, he was a member of the Permanent Editorial Board of the Uniform Commercial Code and its counsel from 1980 to 1987. In that capacity, he was principal author of revisions to Article X of the Uniform Commercial Code governing uncertificated securities.

Aside from law, Aronstein was an accomplished pianist who often played at law school events and a master at crossword puzzles. His wife, Sally, died in 2000.

Aronstein is survived by daughter Katherine Porter; sons David and James; six grandsons; daughter-in-law Patricia Aronstein; and son-in-law William Porter. Contributions in Aronstein’s memory can be made to the University of Pennsylvania Law School. A memorial service was be held at the law school on May 24.