Arnie Dahm, 92

Arnold (Arnie) Jay Dahm died on Oct. 24, 2024, a month after celebrating his 92nd birthday with family at the Brookdale retirement facility in Oak Park. An internationally recognized physicist, he was known for his pioneering work in low-temperature physics, inspiring colleagues and students around the world.

Born on Sept. 12, 1932, to Henry and Minnie Dahm, he was the second of seven siblings in a close-knit family proud of their Dutch heritage. He grew up in Peoria, Iowa, where he graduated from Pella Christian High School, Central College, and the University of Minnesota, where he earned a master's degree and PhD in physics. He later completed postdoctoral research at the University of Pennsylvania.

In 1968, he joined Case Western Reserve University in Cleveland, where he taught for 35 years. A popular professor, he welcomed his international graduate students into his home, sharing Thanksgiving dinners and lively discussions. In 2000, Case Western honored him as an Institute Professor, recognizing his contributions to science and academia. He received two Fulbright fellowships, enabling him to conduct research in England and West Germany.

Drafted into the U.S. Army during the Korean War, he served his country for two years. In 1967, he met Susan Dickey in Philadelphia, and they married seven months later. Together, they raised two daughters, Amy Roehl and Kristi Dahm; and he had three granddaughters.

An active member of the Church of the Covenant in Cleveland, he served as chairman of the board of trustees, elder, and deacon. He was an avid tennis player and skier. His adventurous spirit led to traveling extensively with his wife, hiking the Peruvian Andes, exploring the Galapagos Islands, and finding wonder in new places. In 2021, they moved to Brookdale Oak Park, where he became known as the "jigsaw puzzle wizard" and was celebrated for his sharp mind and friendly nature.

Deeply committed to social justice, gun safety, and combating global warming, he worked tirelessly for a better world.

A memorial service will be held at 10 a.m. on Saturday, Nov. 9, 2024, at Fair Oaks Presbyterian Church in Oak Park.

Gifts in his memory may be made to Fair Oaks Presbyterian Church and The Sierra Club.